Three Los Angeles County Sheriff's Department deputies died on July 18, 2025, when a hand grenade exploded during what should have been a routine training exercise at the Biscailuz Center Training Academy—one that investigators now say should never have involved live explosives at all.
Background
The tragedy stems from an incident the day before the explosion. Detectives Joshua Kelley-Eklund and William Osborn responded to a Santa Monica parking garage where two hand grenades had been discovered, according to a lawsuit filed by Deputy Victor Lemus's widow, Nancy Lemus. Instead of arriving in their bomb squad truck equipped for hazardous ordnance handling, the detectives came in standard work vehicles.
The deputies allegedly used an older X-ray machine to examine the grenades—a device that erroneously indicated they contained no explosive material. Based on this flawed assessment, one deputy allegedly transported one of the grenades in his personal work truck overnight, then brought it to the training academy the following morning.
The Investigation
At the time of the explosion, Lemus had been assigned to the Arson and Explosives Unit for approximately a year. However, according to the lawsuit, he had not yet received proper certification to be in "the immediate presence of live explosive devices." Despite this limitation, Lemus joined Kelley-Eklund and Osborn at the training facility—where explosive devices are explicitly prohibited—for what was supposed to be an inert explosives exercise.
During the training session, either Kelley-Eklund or Osborn allegedly pulled the grenade's pin. The device detonated, killing all three deputies instantly.
"The explosion made Plaintiff Nancy Lemus a widow and her children, Victoria and Emily, fatherless," the lawsuit states.
The complaint further alleges that a department commander photographed Deputy Lemus's body at the scene—an action the filing characterizes as "collecting trophies in the form of death images" that "violated the respect owed to the dead and the privacy of the bereaved." The lawsuit argues Sheriff Robert Luna should have confiscated the commander's phone and searched it for evidence of misconduct.
"The failure to adequately train, supervise, and discipline personnel regarding the taking of such photographs is a complete dereliction of duty," the suit claims, attributing direct responsibility to Luna and his command staff.
Key Takeaways
- Three LASD deputies—Victor Lemus, Joshua Kelley-Eklund, and William Osborn—died in the July 18, 2025 explosion at the Biscailuz Center Training Academy
- Detectives allegedly used a faulty X-ray machine that incorrectly indicated grenades were inert before transporting one in an unsecured work truck
- Deputy Lemus had not completed required training for proximity to live explosive devices despite his unit assignment
- The California Division of Occupational Safety and Health reportedly imposed more than $350,000 in fines against the sheriff's department
- Sheriff Luna stated the department is implementing new safety protocols, equipment standards, and supervisory response procedures