Stephanie Gamez, 20, of Covina, California, was killed on December 24, 2021, during a Christmas Eve gathering at a residence on Highland Court in Ontario. A verbal altercation between Ulices Lopez, 23, of Covina, and Stephanie’s stepfather escalated, and Lopez allegedly produced a handgun and shot Stephanie. She was pronounced dead at the scene and the Ontario Police Department opened an investigation.

The shooting was reported around 10:12 PM. Three days later, on December 27, 2021, Ulices Lopez was arrested by the Ontario Police Department, booked at West Valley Detention Center on murder charges and held in lieu of $1 million bail. Detectives were working to determine the origin of the handgun and urged anyone with information to contact Detective Gregory Clinton or submit anonymous tips through WE-TIP.

Stephanie’s family and community were left grieving after the fatal shooting. Does anyone have information about that evening or about the handgun’s origin?