Luis Ernesto Villanueva-Romero, 39, was found unresponsive in the southbound lanes of the 2000 block of North Towne Avenue in Pomona, California, on August 24, 2024, at about 11:30 p.m. Officers discovered him lying face down and he was taken to a local hospital, where he was later pronounced dead.

Detectives identified 38-year-old Christian Rubalcaba as the primary suspect. Authorities have not publicly disclosed the circumstances that led to Villanueva-Romero’s death or the relationship between him and Rubalcaba. The investigation remains ongoing and the Pomona Police Department is asking anyone with information to contact them at 909-622-1241; anonymous tips can be submitted to L.A. Regional Crime Stoppers at 1-800-222-8477 or online at lacrimestoppers.org.

Villanueva-Romero’s death has been memorialized on sites honoring victims of gun violence, where friends and family have paid respects. If anyone knew Luis or saw activity near North Towne Avenue that night, please share information with investigators.