News from the Office of District Attorney George Gascón



February 14, 2018

Twitter: @GeorgeGascon

CONTACT:     ALEX BASTIAN (415) 553-1931     |    MAX SZABO (415) 553-9089




SAN FRANCISCO – Today, District Attorney George Gascón announced that a jury found Lizette Maria Cauich, age 25, of Los Angeles, guilty of second degree murder, attempted second degree robbery and related enhancements for the June 10, 2016 stabbing death of Mitzi Campbell.  The jury also found Oscar Mendez, age 44, of Los Angeles, guilty of being an accessory after the fact to the murder of Ms. Campbell and for being in possession of a concealed knife.  The jury additionally found both defendants guilty of assault with a deadly weapon and battery with serious bodily injury associated with their attack several days earlier of Amar Dahmi, on May 29, 2016.  

“These crimes are the definition of senseless,” said District Attorney George Gascón. “The victims were simply doing their jobs when they were ruthlessly attacked.”
According to court records, during the early afternoon of May 29, 2016, Defendant Cauich approached the victim, Amar Dahmi, who was working as a parking lot attendant at the corner of Taylor and Eddy streets. She asked to use a porta-potty. When Dahmi explained that the porta-potty was for not for public use, Cauich refused to leave. She then produced two knives, one in each hand, and attempted to stab Mr. Dahmi. Mr. Dahmi defended himself using a nearby plastic garbage can as a shield and successfully dislodged the knives from Cauich’s hands. 

Cauich left the scene before returning several minutes later with two other individuals, including her boyfriend, Defendant Oscar Mendez. Cauich, Mendez, and an unidentified third man attacked Mr. Dahmi with knives. As Dahmi tried to escape, the defendants pursued, and after catching up with Dahmi they stabbed him in his thigh and lower back leaving him badly injured. Dahmi spent five days in the hospital and suffers severe lasting injuries due to the attack.

Approximately a week later on June 10, 2016, Cauich entered a construction site near the intersection of Fifth and Shipley Streets and attempted once again to use a porta-potty. Mitzi Campbell, who was working that day as a traffic controller, attempted to escort Cauich from the construction site. As she did, Cauich produced a long kitchen-type knife from her clothing and repeatedly stabbed Campbell.  Video evidence presented at trial showed the violent stabbing as well as Cauich hovering over Campbell’s nearly motionless body after the stabbing, searching through her pockets in an attempt to remove the victim’s personal belongings. 

Cauich attempted to leave the scene when other construction workers nearby approached. During this same time, Defendant Mendez appeared and told Cauich that they needed to leave.  They went from Fifth and Shipley to Fourth and Folsom before police officers intercepted and arrested them.  Officers recovered a total of five knives from the defendants.  

Ms. Campbell was rushed to San Francisco General Hospital but ultimately succumbed to her injuries.   

“I am relieved that these defendants were arrested and convicted,” said Assistant District Attorney Andrew Ganz. “They destroyed innocent lives, and had to be held accountable.”

The Honorable Robert M. Foley presided.  This successful prosecution is the result of an excellent investigation conducted by San Francisco Police Department Inspectors Kelvin Sanders and Alicia Castillo. Special thanks go to Victim Advocate Giles Feinberg, and Paralegals Tony Yu and Jessica Diamond.  Additional recognition goes to Assistant District Attorneys Michael Swart and Wade Chow for their pre-trial litigation assistance. Assistant District Attorney Andrew Ganz prosecuted the case.