The San Diego County Sheriff's Department has identified the deputy involved in a shooting on State Route 125 one week ago.
Shots were fired on northbound SR-125, between the Grossmont College Drive and Mission Gorge Road exits just after 7 p.m. on Sept. 8.
Deputies were looking into a report of a man threatening to harm himself.
Robert Westbrook, 31, was sitting inside a parked car on SR-125. When a deputy tried to approach Westbrook to talk, he was uncooperative, SDSO officials said.
At that point, Westbrook got out of his car and pulled out an object that looked like a handgun, officials said.
The deputy drew his service weapon and opened fire. He has been identified as Deputy Freddy Herrero, a four-year veteran of the department assigned to the Santee Sheriff's Station.
Westbrook was rushed to Sharp Memorial Hospital where he was being treated for several gunshot wounds.
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The sheriff's department said no deputies were hurt in the shooting.
Investigators said they recovered some kind of weapon at the scene. On Saturday, the SDSO said Westbrook's weapon was a realistic replica of a semi-automatic pistol that fires BBs and pellets. Westbrook will be charged with assault with a deadly weapon.
Westbrook was living out of his car; the SDSO said witnesses told detectives that Westbrook had allegedly stated that he wanted a law enforcement officer to shoot him.
The investigation is ongoing; no further information was released.