LOS ANGELES -- The instrumentality that exploded past week astatine a Los Angeles County Sheriff's Department installation and killed 3 detectives was a grenade, ABC News sources confirmed connected Monday.
Agents and detectives had investigated a Santa Monica flat analyzable successful transportation with Friday's explosion, the Los Angeles County Sheriff's Department said.
According to ABC News sources, the grenades were allegedly near by a erstwhile tenant of the complex. The weaponry squad squad X-rayed the grenades, which were believed to person been inert, earlier the detectives moved them backmost to the facility, wherever they exploded Friday.
The HOA president told a nonmigratory that a erstwhile tenant who had been successful the subject whitethorn person near the grenades behind, and a existent nonmigratory discovered them successful her retention locker past Thursday.
Over the weekend, the Bureau of Alcohol, Tobacco, Firearms and Explosives' (ATF) National Response Team took implicit the investigation.
The sheriff's section said a hunt warrant was executed Monday successful the 13900 Block of Marquesas Way successful Marina Del Rey successful transportation with the case.
Meanwhile, the sheriff's section said a hunt warrant was executed Monday successful Marina Del Rey successful transportation with the case, adding that investigators are pursuing "all leads and grounds to find the origins of the devices."
"I saw astir 50 bull cars, cops coming retired with bulletproof-looking vests connected and continuing to travel down, and each benignant of hovering implicit connected the marina, close by the water," said Rachel McCord, a Marina Del Rey resident.
Community honors 3 detectives killed
A makeshift memorial for the detectives extracurricular the grooming installation continues to turn arsenic deputies and members of the nationalist halt by to wage their respects.

The 3 men killed were identified arsenic detectives Joshua Kelley-Eklund, Victor Lemus, and William Osborn. They were described arsenic elite members of the Special Enforcement Bureau's Arson Explosives Detail, with a corporate 74 years of service. Between them, the 3 men permission down 16 children.

The sheriff's section said details regarding memorial services volition beryllium announced successful the coming days.
Sheriff Robert Luna called the department's Special Enforcement Bureau (SEB) "the champion of the best.''
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The SEB is made up of dozens of highly trained, highly specialized deputies who bash everything from SWAT standoffs to risky rescues of radical successful peril successful distant areas.
Meanwhile, flags are flying astatine half-staff crossed the region and astatine the state's capitol successful grant of the 3 detectives.
The Association for Los Angeles Deputy Sheriffs is collecting online donations done the ALADS C.A.R.E.S. Foundation to enactment the detectives' families.
Rudy Gonzalez, who besides works successful instrumentality enforcement, says he's raising wealth for each 3 families by selling T-shirts with the detectives' names, the weaponry squad, and the sheriff's section logo.
"I conscionable privation to marque definite the kids are taken attraction of, the families are taken attraction of, and that they cognize they inactive person an extended household retired determination with us," Gonzalez said.
"I tin deliberation of nary greater honor, truly, than to dice successful the work of the radical of L.A. County," Dep. Jason Zabala said.
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