[300]*300Opinion by
Judge DAILEY.
1 1 Defendant, Mustafa J. Ujaama, appeals the judgments of conviction entered on jury verdicts finding him guilty of first degree murder (after deliberation) and aggravated motor vehicle theft,. We affirm.
I. Background
1 2 While defendant, his wife, S.R., and six-year-old stepdaughter, LR., lived together in a home in Denver, S.R. began a romantic relationship with the victim, Timothy Kaufman. On June 11, 2006, defendant and S.R. had an argument during which S.R. took defendant's cell phone and defendant took S.R.'s cell phone.
13 The next morning, defendant drove to Aurora to pick up his children at his ex-wife's home and take them to school. Upon returning home, defendant apologized to S.R. for arguing with her and took her to their bedroom, where they became intimate. As they were becoming intimate, defendant told S.R. that he had a surprise for her. A short time later, S.R. heard a knock at the door, at which point, according to S.R., defendant said, "Your surprise is here," got out of bed, took a gun from the closet, and walked out into the living room. S.R. then heard several gunshots, after which LR. ran into the bedroom, saying that defendant had killed Kaufman. S.R. and LR. fled the home through a bedroom window.
1 4 Defendant had shot Kaufman eight or nine times, including in the heart, the groin, and the back (three times). Upon determining that Kaufman was dead, defendant found a key to Kaufman's car, located the car, and drove it to the back of the house. Defendant wrapped Kaufman in "bubble wrap" and a rug, put him in the trunk of the car, and drove to Aurora, where he abandoned the car near his ex-wife's home.
115 Although defendant, in the company of his lawyer, turned himself in to the police later that day, the car and Kaufman's body were not located until the next day.
T6 At trial, the prosecution asserted that, after taking S.R.'s cell phone, defendant read text messages that revealed her romantic relationship with Kaufman, and, posing as S.R., lured Kaufman to the home to kill him. In support of this theory, the prosecution presented evidence indicating that Kaufman had come to the home prepared to have sex,1 as well as phone records showing that, earlier that morning, Kaufman had exchanged approximately thirty text messages with whoever had possession of S.R.'s phone.2 To corroborate S.R.'s testimony that defendant had her phone, while she had his, the prosecution presented phone records showing that (1) a call-which originated near the ex-wife's house in Aurora-was made from S.R.'s phone to a man whom defendant had previously contacted in Seattle to buy a car; and (2) a call was made from defendant's phone to S.R.'s mother.
T7 LR. testified via closed-cireuit television. She related that, while reading in the living room, she heard a knock and saw Kaufman-whom she knew as one of her mother's coworkers-enter the home through an unlocked door. According to LR., Kaufman said, "Hi," to her, and then defendant, without saying anything, "came out with a gun, and ... shot him."
8 Defendant asserted that he shot Kaufman in self-defense or in response to Kaufman's intrusion into his home. To that end, he testified that
® he was vigilant about the security of his home and paranoid about his family's safety;
after his fight with S.R., he put her cell phone on its charger, did not see it again, and did not have it on the day of the shooting;
the surprise he told S.R. about was a new car;
when he and S.R. were in the bedroom, she stated that she heard a knock at the door and that someone had entered the house;
[301]*301e as he exited the room with his gun, he saw a shirtless, muscular man moving toward him with one hand raised;
e he shot the intruder several times; and
e fearing that the police might kill him if he called them to the house, he decided to take Kaufman's body to the police station, but, en route, left the car near his ex-wife's home so he could contact a lawyer.
19 The prosecution argued that the location of Kaufman's wounds was inconsistent with defendant's self-defense theory, and the jury found him guilty of first degree murder (after deliberation) and aggravated motor vehicle theft. Subsequently, the trial court sentenced him to a controlling term on the murder count of life imprisonment without possibility of parole.
TI. Closed-Circuit Television Testimony
110 Defendant contends that the trial court violated his federal confrontation rights by allowing LR. to testify via closed-circuit television without sufficient grounds to do so.3 We disagree.
111 Before trial, the prosecution filed a motion, pursuant to section 16-10-402, C.R.S.2011, to present the then eight-year-old LR.'s, testimony via closed-circuit television. The prosecution based its motion on the following cireumstances: defendant was LR.'s stepfather; she observed him kill a person that she knew; she had not seen him since the shooting; she had been in counseling for several months; and, she "would suffer serious emotional distress if forced to testify in front of [defendant] and ... [would] not be able to communicate ... what she witnessed."
1 12 Defendant responded, in writing, arguing that he had the right to confront LR. during trial and that she would be able to communicate rationally and articulately in open court.
1 13 On the morning of trial, the prosecutor, as an offer of proof, stated:
[LR.] is eight years old. She has not seen the defendant since she saw him kill [Kaufman]. She was in counseling for a great part of the year. It took a substantial amount of counseling to get her to the point that she is sleeping in her own bed, sleeping through the night, able to even converse about this.
1 14 The prosecutor offered to provide testimony on these issues from LR.'s grandmother. Defendant objected that it was "pure speculation" that LR. would suffer severe emotional distress or trauma by testifying in the courtroom.
{ 15 The trial court ruled:
[Blased on the People's offer of proof,] I don't think there needs to be direct testimony ... because the way the statute is written, it is left pretty much entirely to my discretion. Based on the fact that since this incident, [LR.] has been receiving counseling, I think that's enough of a showing to meet the standard that's stated in [section C.R.S8.2011].
T 16 In light of the trial court's ruling, we will assume, without deciding, that defendant's "pure speculation" objection was sufficient to preserve the present issue for appeal. See People v. Melendez, 102 P.3d 315, 322 (Colo.2004) ("We do not require that parties use 'talismanic language' to preserve particular arguments for appeal, but the trial court must be presented with an adequate opportunity to make findings of fact and [302]*302conclusions of law on any issue before we will review it.").4
117 A defendant has a federal constitutional right to confront adverse witnesses at trial. See U.S. Const. amend. VI. However, the federal constitution does not require that a defendant be allowed in all instances to confront an adverse witness face-to-face in court. People v. Rodriguez, 209 P.3d 1151, 1156 (Colo.App.2008), aff'd, 238 P.3d 1283 (Colo.2010).
118 In Maryland v. Craig, 497 U.S. 836, 857, 110 S.Ct. 3157, 3170, 111 L.Ed.2d 666 (1990), a closely divided Supreme Court upheld a defendant's sexual assault convictions despite the victims' having testified outside her presence via one-way, closed-circuit television. The Supreme Court reasoned that the "preference" for face-to-face confrontation "must occasionally give way to considerations of public policy and the necessities of the case." Id. at 848-49, 110 S.Ct. at 3165 (quoting Mattox v. United States, 156 U.S. 237, 243, 15 S.Ct. 337, 340, 39 L.Ed. 409 (1895)).
119 In Craig, the Court recognized that a state's interest in protecting the physical and psychological well-being of child abuse victims could, in some cases, be sufficiently important to outweigh a defendant's right to face his or her accusers in court. Id. at 853, 110 S.Ct. at 3167. Such a case is presented when the trial court finds that (1) a special procedure is necessary to protect the welfare of the particular child witness; (2) the particular child witness would be traumatized by the presence of the defendant-not by the proceedings generally; and (8) the child witness will suffer more than de minimis emotional distress if forced to testify in the presence of the defendant. Id. at 855-56, 110 S.Ct. at 8169.
120 In Colorado, section 16-10-402 represents the General Assembly's judgment as to how best, and under what cireumstances, to accommodate the public's interest in protecting testifying child witnesses consistent with a defendant's right to confront adverse witnesses. See Rodriguez, 209 P.3d at 1156-57. Consistent with Craig, section 16-10-402 authorizes the use of closed-circuit television to obtain the live testimony of a child who "at the time of a trial is ... less than twelve years of age" when "[the judge determines that testimony by the witness in the courtroom and in the presence of the defendant would result in the witness suffering serious emotional distress or trauma such that the witness would not be able to reasonably communicate." $ 16-10-402(1)(a)(II); see Rodriguez, 209 P.3d at 1157.
$21 On appeal, defendant argues that, under Craig, the trial court could not authorize the use of a closed-circuit television procedure to take LR.'s testimony on the basis of an offer of proof alone; actual evidence of psychological trauma to the child was required. We are not persuaded.
122 Defendant correctly notes that, in Craig, the Supreme Court stated that the "requisite finding of necessity must of course be a case-specific one: The trial court must hear evidence and determine whether use of the one-way closed cireuit television procedure is necessary to protect the welfare of the particular child witness who seeks to testify." 497 U.S. at 855, 110 S.Ct. at 3169. However, in Craig, the Court also declined "to establish, as a matter of federal constitutional law, any ... categorical evidentiary prerequisites for the use of the one-way television procedure." Id. at 860, 110 S.Ct. at 3171. Rather, it held that "[slo long as a trial court makes ... a case-specific finding of necessity, the Confrontation Clause does not prohibit ... using a one-way elosed circuit television procedure for the receipt of testimony by a child witness." Id.
123 Unless an evidentiary hearing is constitutionally or statutorily required, a court may resolve factual issues relevant to pretrial motions based on "affidavits or in such other manner as the court may direct." Crim. P. 12(b)(4). As we read Craig, it does not require actual receipt of evidence before [303]*303a court can permit a child to testify via clogsed-cireuit television. Nor, by its terms, does section 16-10-402(1)(a)(II) require the receipt of actual evidence before permitting a child to testify via that procedure.
124 In other contexts, divisions of this court have recognized that a trial court possesses the discretion to make pretrial determinations in any reasonable manner, including giving each party the opportunity to present evidence using offers of proof. See People v. Moore, 117 P.3d 1, 3 (Colo.App.2004) (determining the admissibility of evidence of prior acts of domestic violence); People v. Groves, 854 P.2d 1310, 1313 (Colo.App.1992) (determining the admissibility of evidence of prior acts of sexual assault and homicide). We perceive no reason why such a procedure would be inadequate in the present context.
1 25 "The wisdom of the Craig court's rejection of [eategorical evidentiary prerequisites] becomes obvious when one contemplates the potential dangers of setting hard and fast evidentiary prerequisites." State v. Foster, 81 Wash.App. 444, 915 P.2d 520, 526 n. 4 (1996), aff'd, 135 Wash.2d 441, 957 P.2d 712 (1998). Here, despite an opportunity to do so, defendant did not contest the substance of the prosecution's offer. At best, he contested the means by which that information was conveyed, as well as the sufficiency of the information to support the relief requested by the prosecution. Because he did not contest the substance of the prosecution's proffer, there was no need for the trial court to take evidence to resolve disputed issues of fact. Nor was there a necessity to receive expert evidence. See id. ("[Elxpert testimony is not always required to establish the necessary predicate for the trial court's determination.")
1 26 Under the cireumstances, we perceive no fundamental unfairness, or abuse of the court's discretion, in using an offer of proof in lieu of actual evidence to resolve the prosecution's motion.
TII. Sufficiency of Evidence-Aggravated Motor Vehicle Theft
1 27 We also reject defendant's contention that his aggravated motor vehicle theft conviction must be reversed because there was insufficient evidence that he committed the offense underlying that crime.
128 We review the record de novo to determine whether the evidence before the jury was sufficient to sustain defendant's convictions. Dempsey v. People, 117 P.3d 800, 807 (Colo.2005).
T 29 When examining the sufficiency of the evidence, we determine whether the evidence, viewed as a whole and in the light most favorable to the prosecution, is sufficient to support a conclusion by a reasonable person that the defendant is guilty of the crime charged beyond a reasonable doubt. People v. Grant, 174 P.3d 798, 811 (Colo.App.2007). A modicum of relevant evidence will not rationally support a conviction beyond a reasonable doubt, People v. Torres, 224 P.3d 268, 277 (Colo.App.2009); however, "Lf there is evidence upon which one may reasonably infer an element of the crime, the evidence is sufficient to sustain that element." Grant, 174 P.3d at 812; cf. id. ("where reasonable minds could differ, the evidence is sufficient to sustain a convietion").
130 Here, the charged underlying offense for aggravated motor vehicle theft, section 18-4-409(2)(d), C.R.S.2011, was attempted concealment of death, sections 18-2-101(1) and 18-8-109, C.R.S.2011.
1 31 A person commits eriminal attempt if, acting with the kind of culpability otherwise required for commission of an offense, he or she engages in conduct constituting a substantial step toward the commission of the offense. § 18-2-101(1). "A substantial step is any conduct, whether act, omission, or possession, which is strongly corroborative of the firmness of the actor's purpose to complete the commission of the offense." Id.
32 A person commits the crime of concealing death when he or she "conceals the death of another person and thereby prevents a determination of the cause or cireum-stances of death." § 18-8-109; see People v. T & S Leasing, Inc., 763 P.2d 1049, 1051 (Colo.1988) (applying section 18-8-109).
[304]*304133 Here, the prosecution presented evidence that, after killing Kaufman, defendant wrapped his body in a rug, put his body in the trunk of a car, drove the car to a different county, abandoned the car by the side of a road, and never revealed the location of the car or body to the police. Viewed in the light most favorable to the prosecution, this evidence was sufficient to allow the jury to conclude that defendant took a substantial step toward concealing Kaufman's death to prevent an accurate determination of the cause or cireumstances of his death.
1 34 In so concluding, we necessarily reject defendant's argument that he could not be found guilty of attempting to conceal Kaufman's death because he left Kaufman's automobile parked on a city street where it would have been inevitably discovered in a relatively short period of time. The crime for which defendant was convicted, however, was not attempting to conceal an automobile, but attempting to conceal a death. A jury could reasonably find that, by placing Kaufman's body in the locked trunk of the automobile, and the automobile far from the scene of the crime, defendant was attempting to avoid implication in Kaufman's death, at least long enough for evidence of the cause or circumstances of death to dissipate.
Because sufficient evidence was presented at trial to support a conviction of attempted concealment of death, defendant is not entitled to reversal on this ground.
IV. Unpreserved Issues
T36 Defendant raises seven other issues on appeal. However, those issues are not properly preserved for appellate review.
187 An issue is unpreserved for review when, among other things, (1) no objection or request was made in the trial court, see People v. Miller, 113 P.3d 743, 751 (Colo.2005) (instructions); People v. Clark, 214 P.3d 531, 542 (Colo.App.2009) (prosecutorial misconduct), aff'd on other grounds, 232 P.3d 1287 (Colo.2010); People v. Baca, 852 P.2d 1302, 1308 (Colo.App.1992) (evidence); or (2) an objection or request was made in the trial court, but on grounds different from those raised on appeal, see People v. Renfro, 117 P.3d 43, 47 (Colo.App.2004), or on unspecific grounds which would not have alerted the trial court to the issue of which the defendant now seeks review. See Rodriguez, 209 P.3d at 1156.
138 Here, defendant did not make timely or specific objections in the trial court to the seven other matters he raises on appeal. Consequently, reversal is not warranted in the absence of plain error. See Crim. P. 52(b); People v. Malloy, 178 P.3d 1283, 1288 (Colo.App.2008).
139 The plain error rule reflects a "careful balancing of [the] need to encourage all trial participants to seek a fair and accurate trial the first time around against [the courts'] insistence that obvious injustice be promptly redressed." United States v. Fro-dy, 456 U.S. 152, 163, 102 S.Ct. 1584, 1592, 71 L.Ed.2d 816 (1982).
$40 "At best, plain error is strong medicine." United States v. Simmonds, 931 F.2d 685, 687 (10th Cir.1991). It should provide a basis for relief only on rare occasions because (1) it is difficult to "fault a trial court for failing to rule on an issue that had not been presented to it," id. at 688, and (2) an accused should not be able to "withhold his objections until completion of his trial ... and later complain of matters which, if he had made a timely objection, would have allowed the trial court to take corrective action." People v. Rollins, 892 P.2d 866, 874 n. 13 (Colo.1995).
{41 Consequently, relief under the plain error doctrine is limited to certain types of errors, having a certain type of effect. See Malloy, 178 P.3d at 1288 (plain error is error that is "obvious," "substantial," and "grave").
$42 "Plain error assumes that the [trial] court should have intervened sua sponte because the error was so obvious." People v. Petschow, 119 P.3d 495, 505 (Colo.App.2004). To qualify as plain error, the error must be one that "is so clear-cut, so obvious," a trial judge should be able to avoid it without benefit of objection. People v. Taylor, 159 P.3d 730, 738 (Colo.App.2006). An error may be "obvious," for purposes of the plain error rule, if the issue has been decided by a division of this court or the [305]*305Colorado Supreme Court, or if the trial court has engaged in a clearly erroneous application of statutory law. See People v. Mendoza, - P.3d -, - n. 4, 2011 WL 4837499 (Colo.App.2011).
148 Plain error, however, must not only be "obvious"; it must also be seriously prejudicial: the error's effect must be so grave that it "undermine[s] the fundamental fairness of the trial itself [so] as to cast serious doubt on the reliability of the convietion." Taylor, 159 P.3d at 738-39.
«[ 44 With these principles in mind, we now examine defendant's remaining seven contentions.
A. Evidentiary Issues (3)
145 For the following reasons, we reject defendant's contentions that plain error occurred as a result of the admission of certain evidence in the case:
© Although the prosecution elicited evidence that defendant exercised his Miranda5 right to remain silent, it was allowed to do so after defendant told the jury that he (1) went to the police station to make himself available for the investigation and to tell the police what happened; and (2) was not trying to conceal anything from the police. See generally Golob v. People, 180 P.3d 1006, 1012 (Colo.2008) ("The concept of 'opening the door' represents an effort by courts to prevent one party in a criminal trial from gaining and maintaining an unfair advantage by the selective presentation of facts that, without being elaborated or placed in context, create an incorrect or misleading impression. When a party opens the door to otherwise inadmissible evidence, his opponent may then inquire into the previously barred matter.") (citation omitted); see also People v. Davis, - P.3d -, -, 2010 WL 2105878 (Colo.App.2010) (cert. granted on other grounds Dec. 20, 2010) (a testifying defendant may be impeached with his otherwise constitutionally protected, post-Miranda advisement silence to rebut a claim asserted by the defendant at trial);
© Given that LR. testified at trial, defendant was not denied his constitutional confrontation rights by the admission of two videotaped statements she had given to the authorities. See People v. Argomaniz-Ramirez, 102 P.3d 1015, 1018 (Colo.2004) (the admission of prior out-of-court statements made by a witness who testifies at trial and is subject to cross-examination does not violate a defendant's right to confrontation); People v. Whitman, 205 P.3d 371, 381 (Colo.App.2007) (same); People v. Galloway, 726 P.2d 249, 253 (Colo.App.1986) (a defendant's confrontation rights were not violated by the admission of child hearsay under section 13-25-129, C.R.S.2011, where child testified and the defendant cross-examined him); 6 and
O Any error in admitting evidence that defendant's mother and ex-wife were uncooperative with the police was neither "obvious" nor "grave":
O The inability to find defendant's, S.R.'s, and Kaufman's cell phones was a hotly contested issue. As pertinent here, defendant maintained that he never saw his or S.R.'s phone after their argument, and the prosecution theorized that defendant's mother was responsible for the disappearance of his phone. Accordingly, evidence that the mother-who, at some point, possessed the phone-was unwilling to speak to the police without an attorney was relevant because it tended to make more probable than it would have been without the evidence that the mother purposefully withheld the cell phone from law enforcement offi[306]*306cials. See CRE 402 & 403 (favoring the admissibility of relevant evidence); CRE 401 (defining relevant evidence); and
O The prosecution was entitled to cross-examine the ex-wife, who testified for the defense, to point out any bias she had in defendant's favor, see generally People v. Sommers, 200 P.3d 1089, 1096 (Colo.App.2008), and, to that end, it could arguably, at least, elicit evidence of her refusal to cooperate with the police until she received immunity for herself. See generally People v. McCollum, 239 Ill.App.3d 593, 180 Ill.Dec. 346, 607 N.E.2d 240, 243 (Ill.App.Ct.1992) ("Although a witness has a right to refuse to cooperate with or to be interviewed by the other side, that refusal can be shown in court to demonstrate bias, hostility, prejudice, or interest in the outcome. As such, the refusal to talk to the other side in advance of the trial is a proper matter to bring out on eross-examination."). Certainly, no statute or Colorado case prohibited the inquiry.
B. Instructional Issues (8)
146 In the context of jury instructions, the supreme court has stated that, for plain error purposes, an error is sufficiently grave if a reasonable possibility exists that the error contributed to the defendant's conviction. Miller, 118 P.3d at 750.7
T 47 For the following reasons, we perceive no instructional plain error in this case:
1. Self-defense
148 The People concede that the trial court erroneously included in its self-defense instruction irrelevant references to initial aggressor, combat by agreement, and provocation concepts.
€{49 We perceive no plain error in the court's self-defense instruction. The evidence did not raise any initial aggressor, combat by agreement, or provocation issues, nor did the prosecution ever argue that any of those concepts constituted a basis upon which the jury could reject defendant's defense of self-defense. Indeed, the prosecution never mentioned any of these concepts [307]*307or attempted, in any way, to imply that they were even applicable. Instead, the prosecution theorized that defendant, posing as S.R., lured Kaufman to the home under the false pretense that Kaufman would have sex with S.R. By its very nature, this theory would not encompass issues concerning an initial aggressor, combat by agreement, or provocation.
150 Because, under these cireum-stances, the initial aggressor, combat by agreement, and provocation concepts were superfluous and, as such, neither imposed any extra burden on defendant nor interfered with his self-defense theory, there is no reasonable possibility that their inclusion in the instruction contributed to his conviction. Consequently the error was not plain. See Baca, 852 P.2d at 1307 (inclusion of an unnecessary instruction did not require reversal because it "did not pose any barrier to the jury giving full consideration to the defendant's theory of defense"); see also People v. Manzanares, 942 P.2d 1235, 1241 (Colo.App.1996) (where there was no evidence that the defendant initiated the fight and the prosecutor did not mention the instruction in closing argument, unwarranted initial aggressor instruction was harmless).8
2. Use of Force Against an Intruder ("Make-My-Day")
1 51 The trial court instructed the jury, as follows, on the "make-my-day" principles codified in the statute authorizing use of force against an intruder, section 18-1-704.5(2), C.R.8.2011:
It is an affirmative defense ... that the defendant used physical force, including deadly physical force, against another person that
(1) while the defendant was an occupant of a dwelling,
(2) the other person made an unlawful entry into that dwelling,
(8) the defendant had a reasonable belief that the other person was committing or intended to commit a crime in the dwelling in addition to the uninvited entry,
(4) and the defendant reasonably believed the other person might have used any physical force, no matter how slight, against any occupant of the dwelling.
In order for this affirmative defense to apply, the other person must have made an entry into the dwelling in known violation of the criminal law. An entry made accidentally, or in the good faith belief it is lawful, is not unlawful.
152 In a separate instruction, the trial court informed the jury that the prosecution "has the burden of proving the guilt of the defendant ... beyond a reasonable doubt as to the affirmative defenses."
153 Defendant contends that the court's "make-my-day" instruction was erroneous because it (1) permitted the jury to conclude that the prosecution had no burden of disproving the affirmative defense until he first proved that Kaufman entered the dwelling in known violation of the criminal law; and (2) unduly limited his right to respond with force to a situation in which he had reason to [308]*308believe that the intruder had already used force against an occupant of the house.
a. Shifting the Burden of Proof
154 Under section 18-1-407, C.R.S. 2011, once a defendant presents some eredi-ble evidence supporting the applicability of an affirmative defense, the prosecution bears the burden of proving the guilt of the defendant as to the issue raised by the affirmative defense.
155 Relying on People v. Janes, 982 P.2d 300 (Colo.1999), defendant contends that the trial court's instructions impermissibly shifted to him the burden of proof with respect to the "unlawful entry" component of the make-my-day defense. In Janes, the trial court gave an "unlawful entry" instruction which stated:
To find the defendant not guilty based upon the lawful use of deadly physical force against an intruder, you must find that the victim made a knowingly unlawfal entry into the defendant's apartment. An entry that is uninvited is not necessarily unlawful. This defense is not available if the victim entered the apartment in the good faith belief he was making a lawful entry.
Id. at 303.
The supreme éourt found the instruction deficient:
Logically, the jury could have concluded that the burden was on the defendant to prove the conditions set forth in [the "unlawful entry"] Muostruction.... As Janes points out, this is especially problematical with respect to the language ... that the defense does not apply if the victim entered the condominium with the good faith belief that he acted lawfully. Clearly it is not the defendant's burden at trial to prove that the victim did not enter in good faith.
Id. at 303-04.
156 Defendant argues that the language, "In order for this affirmative defense to apply," in the make-my-day instruction here had the same burden-shifting potential as the language in the "unlawful entry" instruction in Janes. Viewing that language in a vacuum, we would agree with defendant. However, as we read the opinion in Janes, the supreme court did not reverse based on this potential defect in the instruction, but because other instructions did not make clear to the jury which party had the burden of proof with respect to the affirmative defense of "make-my-day." See id. at 304 ("[The jury instructions, when read as a whole, confused or misled the jury as to the burden of proof applicable to the affirmative defense of 'make-my-day.' ").
157 In Janes, besides the "unlawful entry," instruction, there were separate instructions on the make-my-day defense and on affirmative defenses. The affirmative defense instruction set forth the burden of proof, and referenced the make-my-day instruction, but not the "unlawful entry" instruction. Further, the unlawful entry instruction was not identified for the jury as an affirmative defense. Thus, the supreme court concluded, jury had no reason to know that the prosecution's burden of proof with respect to affirmative defenses ... applied to {[the "unlawful entry"] [unstruction . ..." Id. at 808.
58 That is not the case here. Unlike in Janes, the "unlawful entry" principles were included within the make-my-day instruction, which identified the make-my-day defense as an affirmative defense. And, as the separate affirmative defense instruction clearly set forth the prosecution's burden of proof as to these types of defenses, the instructions, when read together, see People v. Zamarripa-Diaz, 187 P.3d 1120, 1122 (Colo.App.2008), prevented the jury from concluding that defendant carried any burden with regard to proving any part of the make-my-day defense. '
b. Belief in a Past, as Opposed to a Possible Present, Use of Force
159 As to defendant's second point, the court's "make-my-day" instruction was phrased in terms of whether defendant "reasonably believed that the [intruder] might have used any physical force ... against an occupant" of the home. (Emphasis added.) In contrast, the "make-my-day" statute is worded in terms of whether the occupant of a dwelling "reasonably believes that [the in[309]*309truder) might use any physical force ... against an occupant." See § 18-1-704.5(2) (emphasis added).
T60 The difference in language between the instruction and the statute, defendant asserts, created the possibility that even if the jury concluded that, at the time of the shooting, he had a reasonable belief that the intruder might use physical force against an occupant, it could nonetheless reject the defense if it concluded that defendant had no reasonable belief that Kaufman might have already used physical force.
T 61 Although the instruction was worded in terms of whether the intruder "might have used force," the phrase was susceptible of being read either, as defendant urges, "might have already used" force or, as the People contend, "might have used force at any time."
1 62 For several reasons, the language of the instruction given by the court did not constitute plain error. First, the prosecutor's statements regarding the "make-my-day" defense in closing argument did not encourage the jury to interpret the "might have used" language improperly. Second, only speculation supports the idea that the jury interpreted the instruction as defendant does, and "[sIpeculation does not suffice to demonstrate plain error." State v. Clinkscale, 122 Ohio St.3d 351, 911 N.E.2d 862, 870 (2009); see also n. 7, supra (citing authorities). Third, because the instruction tracks the applicable pattern instruction, see COL-JI-Crim. H:23 (2008), and, no prior Colorado case has held it deficient, any error would not have been obvious to the trial court.9
3. Concealing Death
163 As previously mentioned, the charge of attempted concealing death, section 18-8-109, served as the underlying offense for first degree aggravated motor vehicle theft. See § 18-4-409(2)(d).
64 A person commits the crime of concealing death when he or she "conceals the death of another person and thereby prevents a determination of the cause or cireum-stances of death." § 18-8-109; see T & S Leasing, Inc., 763 P2d at 1051 (applying section 18-8-109).
T 65 In his opening brief, defendant contends that the jury instruction for the offense of concealing death erroneously failed to require proof of "knowingly" or any other culpable mental state. He is mistaken: the instruction explicitly contains the culpable mental state of "knowing." According to the instruction, the elements of the crime of concealing death are "(1) That the Defendant, (2) in the City and County of Denver, State of Colorado, on or about June 12, 2006, (8) prevented a determination of the cause of death or cireumstances of death, (4) by knowing[ty] concealing the death of another person." (Emphasis added.)
166 Nonetheless, defendant asserts that the instruction erroneously failed to apply the "knowing" culpable mental state to the element of the crime of preventing a determination of cause or cireamstances of death. CL § 18-1-508(4), C.R.S.2011 ("When a statute defining an offense prescribes as an element thereof a specified culpable mental state, that mental state is deemed to apply to every element of the offense unless an intent to limit its application clearly appears.").
T 67 The simple answer to this assertion is: any error here could not be plain error. The statute does not prescribe a "knowing" (or any other) culpable mental state, nor has it been interpreted to require one (much less one applicable to each of the statute's two requirements).
1 68 Section 18-1-508(2), C.R.S.2011, provides:
[310]*310Although no culpable mental state is expressly designated in a statute defining an offense, a culpable mental state may nevertheless be required for the commission of that offense, or with respect to some or all of the material elements thereof, if the proscribed conduct necessarily involves such a culpable mental state.
It is, at the very least, debatable as to whether this "interpretive convention" applies to a construction of section 18-8-109. As stated by the very authority upon which defendant relies, "[This] interpretive convention does not help much here, for the proscribed conduct-concealment-does not 'necessarily involve' any culpable mental state. One can easily imagine unintentional, unknowing, non-reckless, even nonnegligent concealment." Marianne Wesson, Mens Rea and the Colorado Criminal Code, 52 U. Colo. L.Rev. 167, 180 (1981) (discussing crime of concealing death).
169 Because neither the language of the statute nor prior case law imposes a mental state requirement in conjunction with the crime, much less its "preventing a determination," prong, any error in omitting it from part of the court's instruction could not have been obvious.
C. Prosecutorial Misconduct in Closing Argument
170 Prosecutorial misconduct in closing argument rarely constitutes plain error. People v. Strock, 252 P.3d 1143, 1152-53 (Colo.App.2010). In order to qualify as such, the misconduct must be flagrantly, glaringly, or tremendously improper, and it must so undermine the fundamental fairness of the trial as to cast serious doubt on the reliability of the judgment of conviction. People v. Weinreich, 98 P.3d 920, 924 (Colo.App.2004), aff'd, 119 P.3d 1073 (Colo.2005). Improper closing argument rises to this level if its probable effect is a verdict based on bias and prejudice rather than on the relevant facts and applicable law. People v. Mandez, 997 P.2d 1254, 1268 (Colo.App.1999).
171 On appeal, defendant argues that the prosecutors repeatedly went beyond the bounds of permissible advocacy by improperly (1) referring to his silence after having been advised of his Miranda rights; (2) commenting on the ex-wife's and mother's refusal to cooperate in the investigation, on the advice of counsel or in the absence of an immunity agreement; (8) undermining the presumption of innocence; (4) appealing to the jury's sympathy or prejudices; (5) offering personal opinions; (6) misstating the evidence and the law; and (7) attacking defendant's credibility.
172 We discern no error with regard to nearly all of the comments made by the prosecutors during closing argument. In our view, these comments were consistent with the principles set forth in the following cases: Domingo-Gomez v. People, 125 P.3d 1043, 1051-52 (Colo.2005) ("While the language used by the prosecutor was susceptible to being considered a personal opinion, upon careful review of the context in which the prosecutor used these expressions, we do not consider them to have fallen to the level of improper expressions of the prosecutor's personal opinion."); People v. Gladney, 250 P.3d 762, 769 (Colo.App.2010) (a prosecutor may ordinarily "employ rhetorical devices and engage in oratorical embellishment and metaphorical nuance," and may comment on "the evidence admitted at trial, the inferences that can reasonably and fairly be drawn from it, and the instructions of law submitted to the jury") (quoting People v. Collins, 250 P.3d 668, 678 (Colo.App.2010), and People v. Rojas, 181 P.3d 1216, 1228 (Colo.App.2008)); People v. Robinson, 891 Ill.App.3d 822, 330 Ill.Dec. 519, 909 N.E.2d 232, 250 (2009) ("[A] prosecutor may challenge a defendant's credibility and the credibility of his defense theory, as well as the persuasiveness of the defense. This includes referring to the defense theory as 'ridiculous' ") (citations omitted); Slaven v. Commonwealth, 962 S.W.2d 845, 859 (Ky.1997) (prosecutor's reference to the defendant as "a cold-blooded murderer" was not misconduct because a "prosecutor can state his opinion of a defendant's guilt if his opinion is based on the evidence"); Commonwealth v. Chamberlain, 30 A.3d 381, 408 (Pa.2011) (prosecutor's reference to the defendant as a murderer was not misconduct because "he argued that the evidence and the reasonable inferences therefrom led to the [311]*311conclusion that [the defendant] was a murderer").
173 We question, however, the prosecution's comments, "[With all the evidence you have heard, [defendant] has shattered his presumption of innocence," and "[The] only way to obtain justice in this courtroom, to seek what [the jury] sought when [it] took that oath as jurors, is to find [defendant] guilty of the murder that he committed."
174 The first of these two comments im-permissibly undermined defendant's presumption of innocence, see People v. McBride, 228 P.3d 216, 224 (Colo.App.2009); and the second arguably injected the prose-eutor's personal opinion into the case. Neither, however, was so flagrant or improper, or had the effect of casting serious doubt on the reliability of the verdict, as to constitute plain error. See People v. Villa, 240 P.3d 343, 357 (Colo.App.2009) (misstatements regarding the presumption of innocence were not plain error because the references were brief, the court's instructions on the presumption of innocence were clear, and there was no objection by the defendant which would amplify the improprieties); People v. Kenny, 30 P.3d 734, 741 (Colo.App.2000) (although prosecutor's comment asking jury to bring justice to the victim and the people of Colorado arguably injected a personal opinion, as well as an appeal to community wishes, into the case, it was not plain error because it did not undermine the fundamental fairness of the trial).
175 The judgments of conviction are affirmed.
Judge TAUBMAN and Judge FOX concur.