LOS ANGELES — A grenade that was taken to a Los Angeles County Sheriff’s Department facility detonated last week and killed three detectives, but a second grenade remains unaccounted for, the sheriff said Friday.
The sheriff’s officials on the Special Enforcement Bureau’s Arson Explosives Detail believed the two military-style grenades they seized from a Santa Monica storage unit on July 17 were inert, but one of them detonated the next day and killed the three men, officials said.
A federal investigation has determined that the second grenade remains unaccounted for, Sheriff Robert Luna said. Investigators have used X-rays and searched vehicles and lockers at the East Los Angeles facility, as well as the blast site and facility perimeter, since the explosion, he said.
“We have looked at everything out there that we possibly could,” Luna said. He said the investigation into how the explosion happened was ongoing…