People v. Rickner CA1/3

CourtCalifornia Court of Appeal
DecidedOctober 6, 2025
DocketA171421
StatusUnpublished

This text of People v. Rickner CA1/3 (People v. Rickner CA1/3) is published on Counsel Stack Legal Research, covering California Court of Appeal primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
People v. Rickner CA1/3, (Cal. Ct. App. 2025).

Opinion

Filed 10/6/25 P. v. Rickner CA1/3 NOT TO BE PUBLISHED IN OFFICIAL REPORTS California Rules of Court, rule 8.1115(a), prohibits courts and parties from citing or relying on opinions not certified for publication or ordered published, except as specified by rule 8.1115(b). This opinion has not been certified for publication or ordered published for purposes of rule 8.1115.

IN THE COURT OF APPEAL OF THE STATE OF CALIFORNIA

FIRST APPELLATE DISTRICT

DIVISION THREE

THE PEOPLE, Plaintiff and Respondent, A171421 v. MATTHEW RICKNER, (Del Norte County Super. Ct. No. CF249003) Defendant and Appellant.

Defendant Matthew Rickner appeals from a judgment after a jury found him guilty of multiple offenses, including the murder of his mother, and assault with a semiautomatic firearm against his father. Earlier in the proceedings, the trial court held a competency hearing and found defendant mentally competent to stand trial. During trial, defense counsel requested that the court suspend criminal proceedings and hold a second competency hearing, but the court declined to do so. In contending the court’s failure to do so violated his due process rights, defendant argues he presented sufficient evidence of a substantial change in circumstances that cast serious doubt on the court’s prior competency finding. We find no error and affirm the judgment.

1 FACTUAL AND PROCEDURAL BACKGROUND A. The Shooting and Investigation At all relevant times, defendant’s parents, Michael and Phyliss Rickner,1 lived in Crescent City. Defendant previously lived in Sacramento but moved to his parents’ home in or around September 2023. On the evening of December 29, 2023, Phyliss informed Michael that their .45 caliber firearm was missing from their bedroom. Phyliss confronted defendant and demanded return of the gun. She reached for the pockets of defendant’s sweatshirt, but he pushed her away and ran out the back door of the home. Michael had not noticed such erratic behavior from defendant prior to that night. Phyliss called 911 and told the dispatcher that her son was “acting crazy” and “strange,” and that a firearm was missing. The dispatcher asked if defendant had a history of strange behavior, and Phyliss answered affirmatively, stating he has “bipolar and schizoaffective disorder” and was “acting erratically” and “imagining things.” Phyliss added, “And he’s not on any meds.” The dispatcher informed Phyliss that officers were on their way. Phyliss told Michael that defendant had mentioned something about their neighbor, so she went to check on him. Michael eventually found defendant in their backyard patio holding the missing gun. Defendant refused to return it and accused Michael of molesting defendant’s son. At one point, defendant cocked the gun and aimed it at Michael. Defendant eventually lowered the gun, put it behind his waistband, and moved to another area of the property.

1 We refer to the family members by their first names to avoid confusion. No disrespect is intended.

2 Michael received a return call from 911 and requested that officers be sent to the residence. After the dispatcher said officers were on their way, the phone line went dead. It was later revealed that the power cord for the landline had been unplugged. Michael was near the front door of the residence when Phyliss walked past him and went inside. Michael and the neighbor heard defendant and Phyliss arguing inside the house. Michael heard defendant say, “you’ve been holding information from me.” A gunshot rang out, followed by Phyliss screaming and another shot. Michael and the neighbor ran towards the neighbor’s home and heard more gunshots. Michael hid in some nearby bushes and called 911, reporting that defendant had shot Phyliss. When the police arrived, they found the front door to the Rickners’ residence ajar and the home mostly dark. Phyliss was lying on the ground, deceased, with three shell casings near her body. She had suffered multiple gunshot wounds, including a shot to the back of the head. The police searched the residence and perimeter for defendant but did not find him. A few hours later, highway patrol officers spotted defendant walking along a nearby road. He fled but fell and was apprehended. The officers found a loaded firearm tucked into defendant’s waistband, and Michael later identified it as the one missing from their bedroom. During a search of defendant’s person, officers found a loaded magazine, a methamphetamine pipe, and a plastic bag containing a white substance that was later determined to be 11 grams of methamphetamine. All spent rounds and casings found at the scene were determined to have been fired by the firearm seized from defendant. Del Norte County Sheriff’s Sergeant Silas Grigsby escorted defendant to a patrol car and “advised him that he was under arrest for murder.”

3 Defendant put his head down and said, “She’s gone,” even though Grisby had not identified the victim or the victim’s gender. Defendant then tried to pull his arm out of Grigsby’s grasp and kicked him in the leg, but Grigsby was able to place him into the patrol car. A search of defendant’s bedroom revealed two bottles for antipsychotic medications. One prescription, filled the previous year on November 30, 2022, was for Olanzapine, and the bottle contained 29 of 30 pills. Another bottle found in defendant’s bedroom had a May 10, 2022 prescription for 90 pills of Olanzapine and was empty. Three bottles of medication for depression were found in the bedroom with prescription dates in April, May, and November of 2022, and each bottle still contained several pills. A bottle of medication for anxiety was also found, with a prescription date of June 10, 2022, and it contained one pill out of 90. An autopsy revealed that Phyliss died of multiple gunshot wounds to the head, neck, chest, and back. Several bullets entered through the right side of her chest and right arm but were not fatal. The gunshot wound to the back of the victim’s head was “immediately incapacitating,” and the pathologist believed this was the last shot fired “because if it occurred first, I don’t think you could have then in that position shot her front, side, and back.” B. Charges On January 3, 2024, defendant was charged by complaint with murder (Pen. Code,2 § 187, subd. (a); count one); assault with a semiautomatic firearm (§ 245, subd. (b); count two); grand theft of a firearm (§ 487, subd. (d)(2); count three); disconnecting a telephone line (§ 591; count four); possession of a controlled substance with a loaded firearm (Health & Saf.

2 Further unspecified statutory references are to the Penal Code.

4 Code, § 11370.1, subd. (a); count five); resisting an executive officer (§ 69, subd. (a); count six); misdemeanor resisting a peace officer (§ 148, subd. (a)(1); count seven); and misdemeanor possession of paraphernalia used for smoking controlled substances (Health & Saf. Code, §§ 11370.1, subd. (a), 11364, subd. (a); count eight). As to counts one and two, the complaint alleged various enhancements for firearm use and discharge causing great bodily harm. (§§ 12022.53, subds. (b), (c), (d), 12022.5, subd. (a), 1192.7, subd. (c)(8), 667.5, subd. (c)(8).) C. Competency Hearing In late January 2025, defendant’s appointed counsel, Karen Olson, told the trial court she had met with defendant and was prepared to go forward with the preliminary hearing scheduled for the next day. On the day of the hearing, however, Olson declared doubt as to defendant’s mental competency, explaining he had suddenly become “nonresponsive” and “non-verbal” and was “lying under the bed . . . as opposed to being on the bed itself.” The trial court had defendant transported to the courtroom, observed his demeanor, and ordered a psychiatric evaluation to be performed by Dr. Kimel Limon. In February 2024, Dr.

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People v. Rickner CA1/3, Counsel Stack Legal Research, https://law.counselstack.com/opinion/people-v-rickner-ca13-calctapp-2025.