Hector Carrillo-Lopez, 39, was killed on June 20, 2021, when gunmen opened fire at a Father’s Day house party in the 2100 block of Dunn Avenue in Richmond, California. What began as a small, private gathering grew much larger after social media promotion; the shooting lasted about four minutes, was recorded on home surveillance, and left three people dead and five others wounded. Authorities believe Carrillo-Lopez may have been from an indigenous group in the mountains of Guatemala.

Investigators say at least two people fired weapons. Video showing a pair of suspects arriving in an older-model Nissan Altima led to the arrest of Enrique Ramirez-Calmo and an 18-year-old who was a juvenile at the time; both were charged with three counts of murder and five counts of attempted murder, with special allegations including multiple murders and intentional firearm use. Prosecutors described the attack at Ramirez-Calmo’s January 2024 trial as a gangland massacre tied to a feud involving the South Side Locos 502 Sureños and a Norteño subset.

If anyone was at the Dunn Avenue gathering or has dashcam or phone video from that night, please share what can help the investigation.