Luis Diaz was 27 when he was fatally shot in Boyle Heights, Los Angeles, in the early hours of December 15, 2010. The shooting happened about 12:10 a.m. on the 2600 block of East 3rd Street. Coroner records say he was struck multiple times and died at Los Angeles County‑USC Medical Center about 45 minutes after being taken there.

Police described the attack as a walk‑up shooting. Detectives said the shooter was only described as a Latino male; it was unclear whether the killing was gang‑related. No arrests had been made and the investigation remained open. Detectives Victor Marin and Doug Kirkland were handling tips, and Crime Stoppers was listed for anonymous information.

Few witnesses and scant leads stalled the probe, and the case became one of many unsolved homicides in the city. If anyone knew Luis Diaz or has information about the shooting, please contact the investigators with what they know.