Officers spent hours searching a Santa Monica apartment building where the device that exploded and killed three deputies may have originally come from.

Memorial services are expected to be announced soon for the three Los Angeles County Sheriff’s detectives killed in an explosion at a training facility in East Los Angeles — the agency’s deadliest day since 1857.

Authorities are now focusing on a Santa Monica apartment where ordnances had been recovered a day before the fatal explosion

The department said it appears the detectives were moving explosives on a cart in the training center's parking lot when the blast occurred.

Three Los Angeles County Sheriff’s Department deputies were killed in what officials are calling a critical arson explosives workplace incident in East Los Angeles on Friday morning, according to sheriff’s officials.

These alleged actions, as detailed in federal court documents, are deeply disturbing,” according to the Los Angeles County Sheriff’s Department.

The former sheriff's deputies intimidated the competition for the 25-year-old Iza, the founder of trading platform Zork who is better known as 'The Godfather'

A Los Angeles County Sheriff’s Department deputy pleaded guilty Monday and a second LASD deputy agreed to plead guilty to federal charges for leveraging their law enforcement jobs during off-duty work as private security for clients including a now-jailed cryptocurrency businessman.