Peo v. Piel
Opinion
23CA0716 Peo v Piel 09-25-2025 COLORADO COURT OF APPEALS
Court of Appeals No. 23CA0716 Weld County District Court No. 21CR1749 Honorable Allison J. Esser, Judge
The People of the State of Colorado, Plaintiff-Appellee, v. Clinton William Piel, Defendant-Appellant.
JUDGMENT AFFIRMED
Division I
Opinion by JUDGE SCHUTZ
J. Jones and Grove, JJ., concur
NOT PUBLISHED PURSUANT TO C.A.R. 35(e)
Announced September 25, 2025
Philip J. Weiser, Attorney General, Brenna A. Brackett, Assistant Attorney General, Denver, Colorado, for Plaintiff-Appellee
Megan A. Ring, Colorado State Public Defender, Kelly A. Corcoran, Deputy State Public Defender, Denver, Colorado, for Defendant-Appellant.
¶1 A jury convicted defendant, Clinton William Piel, of assault with a deadly weapon, which he committed against his stepfather, Mark Nelson. Piel appeals, contending that the trial court improperly limited his attorney’s cross-examination of a police officer and erroneously declined to provide the jury his tendered instruction defining “deadly weapon.” We affirm.
I. Background
¶2 Piel lived with his mother and Nelson. One morning, Nelson asked Piel not to touch the house’s sprinkler system; that evening, Piel’s mother made the same request. Piel became angry, lashing out verbally at both his mother and Nelson. After several minutes, the situation seemed to be de-escalating, and Nelson thought he saw Piel move to get a cup of coffee. Instead, Piel stabbed Nelson in his right upper arm with a steak knife.1 ¶3 By all accounts, Piel did not attempt to stab his mother or attempt to stab Nelson again. Piel’s mother and Nelson went to the hospital to treat the injury. Nelson’s wound required four staples.
1 The steak knife had plastic grips riveted to metal and a metal blade exceeding four inches in length.
Piel was arrested and charged with attempted murder, a class 3 felony, and second degree assault, a class 4 felony. ¶4 At trial, the prosecution called Officer David Driscoll, who responded to the incident and interviewed both Nelson and medical personnel at the hospital. During cross-examination of Driscoll, Piel’s attorney read aloud the legal definition of serious bodily injury while framing a question. The prosecutor objected on relevancy grounds because Piel was not charged with inflicting serious bodily injury and because the question called for Driscoll to provide an improper legal opinion based on hearsay. The court sustained the objection and did not permit Driscoll to provide any opinion testimony about the legal definition of serious bodily injury or whether the medical personnel who treated Nelson found evidence thereof. ¶5 Before the court finalized the jury instructions, Piel’s counsel requested a theory of defense instruction that contained the following explanation of how and when a knife could be considered a deadly weapon:
Knives are not automatically deadly weapons, and are only considered deadly weapons if the specific way they are used or intended to be
used in a particular incident is capable of producing death or serious bodily injury.
(Emphasis added.); see § 18-1-901(3)(e)(II), C.R.S. 2025 (defining deadly weapon, as relevant here, to include “[a] knife, bludgeon, or any other weapon, device, instrument, material, or substance, whether animate or inanimate, that, in the manner it is used or intended to be used, is capable of producing death or serious bodily injury”); COLJI-Crim. F:88 (2024) (tracking this statutory language). ¶6 When the court declined to provide this language, Piel’s counsel requested the court modify the deadly weapon instruction to include the “in a particular incident” language. Piel’s counsel argued that this phrase was necessary to avoid any jury confusion and possible misinterpretation regarding whether the definition’s “use or intended use” language referred specially to Piel’s charged conduct or to the knife’s general intended use. The court declined to include the language Piel’s counsel requested, concluding that the following instruction was sufficiently clear:
“DEADLY WEAPON” means any of the following in which the manner it is used or intended to be used is capable of producing death or serious bodily injury.
a. A knife;
b. A bludgeon; or
c. Any other weapon device, instrument, material, or substance, whether animate or inanimate.
¶7 After deliberations, the jury acquitted Piel of the attempted murder charge and convicted him of second degree assault with a deadly weapon. The court sentenced him to eight years in the custody of the Department of Corrections.
II. Analysis
¶8 Piel raises two issues on appeal. First, he contends the trial court erred by not permitting his attorney to cross-examine Officer Driscoll regarding whether Nelson’s injury amounted to serious bodily injury. Second, Piel contends the trial court should have instructed the jury that a deadly weapon is defined by “the manner in which it is used or intended to be used in a particular incident,” rather than the statutory definition of a deadly weapon that contains a more general use clause. See § 18-1-901(3)(e)(II). ¶9 We address each contention in turn.
A. Cross-Examination of Officer Driscoll ¶ 10 We review a trial court’s evidentiary rulings for an abuse of discretion. People v. Meils, 2019 COA 180, ¶ 11. A trial court
abuses its discretion when its decision is manifestly arbitrary, unreasonable, or unfair, or based on a misapprehension or misapplication of the law. Id. ¶ 11 During counsel’s cross-examination of Officer Driscoll, the following exchange occurred:
Q: And as the officer at the hospital, one of your duties was to investigate whether there was serious bodily injury?
A: Correct.
Q: And in investigating that, you were referencing the legal definition in Colorado of serious bodily injury, correct?
A: Correct. And as . . . to what the doctors see and observed . . . and would testify to, yes.
Q: Right. So what the doctors thought about whether it met that legal definition for serious bodily injury, right?
A: Correct.
Q: Okay. An injury counts as serious bodily injury if it involves a substantial risk of death, a substantial risk of serious permanent disfigurement?
¶ 12 At that point, the prosecutor objected to defense counsel’s asking Driscoll either questions pertaining to whether Nelson’s wound was a serious bodily injury or questions that required
Driscoll to opine on or apply the legal definition of serious bodily injury because that would call for Driscoll to give a legal conclusion. In response, Piel’s counsel noted that Piel was charged with assault with a deadly weapon, and whether serious bodily injury occurred was “relevant to many issues.” On appeal, Piel clarifies this argument thusly: To qualify as a “deadly weapon,” a weapon must be “capable of producing death or serious bodily injury” in the way the defendant used it. § 18-1-901(3)(e)(II). Therefore, to demonstrate that the prosecution could not meet its burden in proving the knife was a deadly weapon, Piel sought to show that Nelson’s wound was not a serious bodily injury through Driscoll’s testimony of what he saw and was told, or not told, by treating medical staff at the hospital. ¶ 13 At the end of the bench conference, the following exchange occurred:
COURT: I’m not going to allow [Driscoll] to give an answer about whether or not [the] legal definition [of serious bodily injury] has been met.
DEFENSE COUNSEL: Then I would just ask [Driscoll] whether he obtained any evidence that there was serious bodily injury in the course of his investigation.
PROSECUTION: And Your Honor, I would continue to object.
COURT: I’m going to sustain the objection if you’re using that [phrase], and particularly how you’ve started to ask it. Again, using it and calling it a legal definition. You can ask [Driscoll] questions about whether [Nelson]
had to be admitted to the hospital . . . and what type of treatment [he received] . . . .
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