Blast At Training Facility Kills 3 Los Angeles Deputies In One Of Department’s Worst Losses Of Life

LOS ANGELES CALIF. JULY 18, 2025 L.A. County Sheriff’s deputies outside the Biscailuz Center Academy Training center, where three deputies were killed during a training accident on Friday morning, July 18, 2025. (Carlin Stiehl / Los Angeles Times via Getty Images)

LOS ANGELES (AP) — An explosion at a Los Angeles County Sheriff’s Department training facility killed three veteran deputies from the arson and explosives unit. Sheriff Robert Luna said it was the department’s worst loss of life since 1857. The blast occurred around 7:30 a.m. Friday at the Biscailuz Training Facility. Officials are investigating the cause, with assistance from the FBI and ATF. Luna said the scene took over four hours to secure. The deputies, with 19, 22, and 33 years of service, were described as highly trained experts. No one else was injured.