VENTURA, Calif. — A 29-year-old Camarillo man has been found not guilty by reason of insanity in connection with the horrific 2022 killing and dismemberment of his mother inside their shared residence, prosecutors with the Ventura County District Attorney's Office announced Thursday.
David Hoetzlein (DOB: 06/04/1997) formally admitted in court to second-degree murder for killing his mother, Tomoko Hoetzlein. However, based on psychiatric evaluations confirming he suffered from a severe mental health crisis that stripped him of the mental capacity required to be held criminally responsible at the time of the offense, the court entered a formal legal finding of not guilty by reason of insanity.
The judicial finding was supported by two independent court-appointed medical doctors who thoroughly evaluated Hoetzlein's psychiatric background and concluded he met all legal criteria for insanity under California law. Prosecutors did not object to the medical findings, citing Hoetzlein’s long-standing, documented psychiatric history, the formal forensic reports, and input from surviving family members.
Gruesome Discovery in Townsite Promenade Dumpster
The landmark case dates back to June 3, 2022, when Ventura County Sheriff’s deputies responded to reports of a suspicious discovery near the Townsite Promenade apartment complex in Camarillo. A local resident searching a residential dumpster for recyclable items uncovered human remains and immediately contacted law enforcement dispatchers.
Homicide detectives and forensic investigators with the Ventura County Medical Examiner’s Office responded to the scene, recovering the dismembered body parts of an adult female. The victim was subsequently identified as Tomoko Hoetzlein.
A comprehensive criminal investigation revealed that David Hoetzlein had strangled his mother to death inside their apartment before dismembering her body and attempting to dispose of her remains in the nearby complex dumpster.
Investigators revealed that Tomoko Hoetzlein had spent years attempting to secure adequate medical treatment for her son's severe, chronic mental health conditions:
"Tomoko Hoetzlein was a devoted mother who did everything in her power to get her son the mental health treatment he desperately needed," said Chief Deputy District Attorney Erin Meister in an official statement released by the District Attorney's Office. "Tragically, she lost her life while trying to help him."
Systemic Mental Health Challenges and Court Proceedings
Court records show that Hoetzlein had a long, documented history of severe mental illness leading up to the June 2022 tragedy. In the days immediately preceding his mother's murder, Hoetzlein had been discharged from Vista del Mar Psychiatric Hospital in Ventura.
Recognizing that her son was in acute mental distress, Tomoko Hoetzlein frantically attempted to secure re-admission. She sent written pleas directly to hospital administrators, contacted her son's assigned mental health caseworker, and filed reports with local law enforcement agencies begging for intervention shortly before she was killed.
Following his arrest in June 2022, Hoetzlein was initially deemed mentally incompetent to stand trial. He spent nearly two years undergoing treatment at state psychiatric facilities before his competency was legally restored in May 2024, allowing judicial proceedings to resume in Ventura County Superior Court.
Sentencing and Institutional Commitment
Under California law, a finding of not guilty by reason of insanity does not result in a defendant's release into the community. Instead, the individual is committed to a secure state hospital facility for intensive treatment and monitoring.
When a defendant receives a verdict of not guilty by reason of insanity for a violent crime like second-degree murder, they are placed directly into the custody of the California Department of State Hospitals. Unlike conventional state prison sentences that carry fixed release dates, commitment to a maximum-security mental hospital is subject to strict judicial oversight and mandatory periodic reviews.
Defendant David Hoetzlein faces a maximum potential term of life in state psychiatric confinement. Before he could ever be considered for conditional outpatient release or community reintegration in the distant future, hospital medical staff and state psychiatric evaluators would have to prove to a superior court judge that he no longer poses a danger to public safety or himself.
Ventura County prosecutors emphasized that committing Hoetzlein to a high-security facility ensures long-term public safety while placing him in an environment equipped to manage his profound psychiatric disorder.
Hoetzlein is scheduled to return to court on Thursday, August 27, 2026, for a formal placement hearing. At that time, a judge will order his commitment to a maximum-security state mental hospital, where he faces up to life in state confinement.
Members of the public and media seeking additional details regarding the court proceedings or case filings can contact District Attorney Communications Manager Joey Buttitta at (805) 767-3400 or via email at Joey.Buttitta@venturacounty.gov.
Official court documents and case updates can also be accessed through the Ventura County District Attorney's Office newsroom.