On January 23, 2024, at about 10:53 p.m. officers responded to multiple reports of gunfire on the unit block of Bryan Avenue in Antioch, California. They found two men with multiple gunshot wounds: 41-year-old Roberto Gonzalez-Lamas and a 59-year-old man. Officers provided first aid and both were taken to a local hospital. Gonzalez-Lamas later died of his injuries; the 59-year-old survived despite life‑threatening wounds.

Detectives identified two suspects: 53-year-old Lonnie Ray Decker and 61-year-old Steven Robert Kelly, both listed as Antioch residents. Decker was arrested February 7, 2024, by the U.S. Marshals Pacific Southwest Regional Fugitive Task Force in Pioneer, California. Kelly was arrested February 12, 2024, in Pittsburg, California. Both were booked into the Martinez Detention Facility and charged with murder, attempted murder and parole violations.

Anyone with information that could help the ongoing investigation is asked to come forward.