David Phillip Pena was a 28-year-old Hispanic man from Pomona, California, remembered by those who knew him as kind and a graduate of local schools including Lexington Elementary, Fremont Junior High, and Garey High School. In the early morning of September 20, 2019, Pena was sitting in his parked car in the 1300 block of South Park Avenue after a night of work when a dark-colored vehicle pulled alongside and an occupant opened fire. Pena was struck by multiple gunshots; his car caught fire and responders later found his body inside the burned vehicle. The Los Angeles County Medical Examiner-Coroner determined he died of shotgun wounds to the chest, not from the fire.

Investigators with the Pomona Police Special Investigations Unit and the Major Crimes Task Force identified a suspect and on September 26, 2019 arrested 26-year-old Gerardo Jesus Zendejas of La Habra on a murder charge. Prosecutors said the killing was motivated by a romantic rivalry; evidence at trial established that Zendejas and Pena were romantically involved with the same woman and that Zendejas drove from La Habra to Pomona before the attack. On August 12, 2021 a jury convicted Gerardo Jesus Zendejas of first-degree murder and shooting from a motor vehicle.