Shooting in LAPD Wilshire Station

An officer stands by a cache of weapons that were found at the home of Daniel Yealu, the man accused of shooting one officer in the lobby of a police station.  (Wally Skalij / Los Angeles Times)

Officer Ricky Brown puts up red tape at the entrance to an LAPD station in Mid-City where an officer was shot Monday night in the lobby.  (Anne Cusack / Los Angeles Times)

Los Angeles Police Officer Len Lai stands on yellow tape as an emergency response truck leaves an LAPD station in Mid-City L.A. where an officer was shot Monday night.  (Anne Cusack / Los Angeles Times)

Los Angeles Police Officer Ricky Brown stands in front of an LAPD station in Mid-City where an officer was shot in the lobby Monday night.  (Anne Cusack / Los Angeles Times)

A uniform with bullet holes that belonged to an officer who was shot in the lobby of a station on Venice Boulevard.   (Wally Skalij / Los Angeles Times)

LAPD Chief Charlie Beck speaks to the media about the condition of the injured officer at Cedars-Sinai Medical Center on Monday night. “He is in great spirits,” Beck said. He described the officer as a “remarkable young man” who was “very, very lucky.”  (Lawrence K. Ho / Los Angeles Times)

An ambulance, rear, that carried one of the shooting victims sits outside the emergency entrance to Cedars-Sinai Hospital on Monday. A squad car that accompanied the ambulance is in the foreground.  (Lawrence K. Ho / Los Angeles Times)

An LAPD officer stands guard at La Brea Avenue and Venice Boulevard, about a block from the station where the shooting occurred.   (Luis Sinco / Los Angeles Times)

The shooting was reported about 8:30 p.m. The suspect was critically wounded.  (Luis Sinco / Los Angeles Times)

Investigators are trying to piece together how the violence unfolded, including how the gunman got to the station.  (Luis Sinco / Los Angeles Times)