Isidro Marquez Jr. was 29 and a resident of Hacienda Heights when his body was found on December 3, 2016, seated in the front of a white, older-model Honda Civic parked behind a shopping center on Gale Avenue. The car’s engine was running and the front passenger door was open when a U-Haul employee spotted the vehicle and called 911. Deputies from the Los Angeles County Sheriff’s Department pronounced Marquez dead at the scene from a gunshot wound to the head.

Investigators concluded Marquez had likely been shot during the night by someone who had been inside the car with him. No one reported hearing a gunshot, there were no immediate witnesses, and his family — with whom he lived a quarter of a mile away — did not know his whereabouts or who he had been with. Authorities said Marquez was not involved in gang activity and therefore believed the killing was not gang-related. No arrests have been announced and the case remains unsolved.

Does anyone who lived or worked near Gale Avenue in December 2016 remember seeing the Honda Civic or anything suspicious that night?