John Albert Guillen, 58, was fatally shot in Santa Ana on April 27, 2026. According to reports, he was getting into his vehicle in the 300 block of North Daisy Avenue at about 12:30 p.m. when a single gunshot struck his upper torso. Officers found the male victim down in the street; paramedics from the Orange County Fire Authority attempted life-saving measures but Guillen was pronounced deceased.

Homicide detectives believe the shooting was gang-related and have been working to identify and locate potential witnesses. As of the initial reports, no suspects have been identified and no arrests have been made. The Santa Ana Police Department has asked the public for any information that could help solve the case.

If anyone saw activity in the 300 block of North Daisy Avenue around midday on April 27, 2026, or has information about this shooting, please come forward to investigators.