WEST SACRAMENTO (CBS13) — Police have identified the suspect in a West Sacramento officer-involved shooting as an 88-year-old man who was a former West Sacramento police volunteer.

West Sacramento police say officers shot and killed 88-year-old Robert Coleman at 3 a.m. Saturday morning, after they responded to a report of an African-American man in his 30s armed with a gun. West Sacramento police described seeing a man get out of a vehicle armed with a gun, and the shooting ensued.

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People who live on his block are stunned by the revelation their 88-year-old neighbor died in a police shooting.

“I am shocked,” one neighbor said. “I’m shocked, I don’t know, he’s a very good man. I don’t know what he would be doing in that situation.”

On Monday, the West Sacramento Police Department said Coleman had a long history as an employee with West Sacramento, working as a code enforcement officer in the 1990s, then as a parking enforcement officer, and finally as a police volunteer before retiring in 2004.

According to his family, he had recently been struggling with mental illness and had suicidal thoughts, police said.

A statement West Sacramento police released reads in part, “Mr. Coleman’s condition, although relevant, will not impact the investigative efforts to scrutinize the actions of the involved officers.”

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Officers involved in the shooting have been placed on paid administrative leave pending the outcome of the investigation.

Black Lives Matter announced it will be holding a vigil to honor the life of Robert Coleman Wednesday night at 7 p.m. at the intersection of the deadly shooting, Poplar and Merkley Avenues.

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No officers were injured in the incident.