San Francisco Woman Sentenced to 31 Years to Life for 2018 Murder and Dismemberment
A San Francisco judge has sentenced 55-year-old Lisa Gonzales to 31 years to life in prison for the 2018 murder and dismemberment of her roommate, Margaret Mamer, in the Mission District.
San Francisco Oakland San Jose, CA, August 3, 2026 —
San Francisco, CA – A San Francisco judge has handed down a sentence of 31 years to life in prison to Lisa Gonzales, 55, for the 2018 murder and dismemberment of her roommate, Margaret Mamer. The crime occurred in the city’s Mission District.
The sentencing concludes a legal process that began following the discovery of Mamer’s death in 2018. Details regarding the specific circumstances leading to the murder and the subsequent dismemberment were part of the court proceedings. The investigation and subsequent trial determined Gonzales’s culpability in the fatal incident.
Margaret Mamer was the victim of the violent crime. The San Francisco District Attorney’s office prosecuted the case. The court’s decision reflects the severity of the charges, with the sentence imposed aiming to address the gravity of the offenses committed against Mamer.
The timeline of events leading to the sentencing began with the initial crime in 2018. Following an investigation, Lisa Gonzales was identified as the perpetrator. The legal proceedings involved presenting evidence and arguments before reaching a verdict and subsequent sentencing by the judge.
The Mission District, the location where the tragic events unfolded, has been the focus of attention due to this case. The conviction and sentencing of Lisa Gonzales mark a significant development in addressing the crime that deeply affected the community and the victim’s loved ones.
Story summarized from the original created by Hamza Fahmy on missionlocal.org, see more information here.
