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TRENTON, N.J. (CBS) — A deadly police-involved shooting in Trenton is under investigation. Police were called to the scene on 600 North Olden Avenue, around 11 p.m. Thursday.

Four officers responded for reports of a man threatening to harm himself.

Police say they found 22-year-old Jason Williams standing in a doorway with a gun. Two officers opened fire, killing him.

Police recovered a gun from the scene and it was later determined to be a BB gun.

CBS3 spoke to one resident who says he was surprised to see the police presence in that part of Trenton.

“It’s actually a quiet neighborhood, it’s not that bad,” said Paul Giambanco. “I deliver papers through here, I’ve never had a problem. It’s been very quiet.”

The New Jersey Attorney General’s Office is investigating the incident.