The investigation into an explosion that killed three Los Angeles County sheriff's deputies in East Los Angeles has turned to Marina del Rey, where investigators served a search warrant at

Serving the search warrant were sheriff’s homicide investigators, the Bureau of Alcohol, Tobacco, Firearms and Explosives, and the Los Angeles Police Department. It was unclear exactly where the

This development follows a continuing investigation into an apartment building in Santa Monica, where several devices possibly connected to Friday's explosion were seized on Thursday.