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Sheriff, ATF to Detail Findings on Deadly LASD Training Explosion

It follows a procession honoring the three bomb squad detectives whose remains were transported to a Covina mortuary Friday.

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The Medical Examiner arrives near the Biscailuz Center Academy Training Center at the intersection of Eastern Ave and Lotta Drive in Monterey Park following an explosion that killed three Los Angeles County Sheriff’s Department detectives, authorities said. The blast occurred just before 7:30 a.m. at the sheriff’s training facility on North Eastern Avenue on Friday, July 18, 2025. (Photo by Mark Savage, Contributing Photographer)
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Two staff members were arrested in an altercation with ICE agents at an Ontario surgery center.

Overview

  • A law enforcement procession Friday carried Detectives Joshua Kelley-Eklund, Victor Lemus and William Osborn from the county medical examiner’s office to a Covina mortuary under a flag-draped salute.
  • Sheriff Robert Luna and ATF officials will hold a joint press conference at the Hall of Justice to present initial findings on the July 18 blast.
  • Investigators have executed search warrants at storage units in Marina del Rey and on a docked boat while deploying robots, drones and K9 teams to collect evidence.
  • Authorities are probing why grenades recovered July 17 from a Santa Monica apartment storage bin were deemed inert before detonating during transport to the training center.
  • The department’s arson and explosives detail, which handles over 1,000 calls annually, will undergo procedural reviews to improve ordnance identification and handling protocols.