Posted: May. 15, 2018 1:32 pm Updated: May. 16, 2018 5:21 pm

QUINCY— A 53-year-old Quincy man has been identified as the person killed Monday night in a police-officer involved shooting in Quincy.

A news release from the Adams County state’s attorney’s office identified the man as Rollie J. Davis.

The state’s attorney’s office also said Quincy police Officer Steve Bangert, a 16-year veteran of the department, discharged his firearm in the shooting that killed Davis.

The state’s attorney’s office said the Illinois State Police, which is investigating the shooting, learned Davis had multiple warrants, including a 2017 felony retail theft case, for his arrest when the shooting happened, and investigators discovered a weapon closely resembling a firearm at the scene near Davis.

A photograph of the weapon was not provided, though officials said a photo would be released at the end of the investigation

The preliminary investigation into the Monday shooting could be finished by the end of the week.

“It is a situation where we’re completely following the Quincy Police Department protocol for an officer-involved shooting,” State’s Attorney Gary Farha said. “The Illinois State Police is on scene … and they are meeting with witnesses now.”

Farha said an autopsy will be completed Wednesday.

Quincy police Deputy Chief of Operations Doug VanderMaiden said Monday that police were called to investigate suspicious activity at 8:28 p.m. at 11th and Jackson and the officer encountered a man. During the encounter, the man reportedly pulled what appeared to be a pistol, VanderMaiden said.

The officer then fired multiple shots at the man.

Farha was unable to release information regarding the weapon the man allegedly pulled.

“There definitely was a weapon on the scene,” he said.

Farha also was unable to discuss the suspicious activity the officer was reportedly investigating.

“I know the evidence, and we’re confident there was some activity,” he said. “We will release that when we can.”

Illinois State Police referred all inquiries to the Adams County state’s attorney’s office.

Bangert has been placed on paid administrative leave until the completion of the investigation, per department policy.

The investigation is ongoing, and reports will be forwarded to the state’s attorney’s office for review.