QUINCY -- The preliminary investigation into the Monday police officer-involved shooting in Quincy that left one man dead could be finished by the end of the week.
State's Attorney Gary Farha said the deceased man's identity should be released at some point Tuesday. The officer involved won't be identified, at least until the preliminary investigation is complete.
"It is a situation where we're completely following the Quincy Police Department protocol for an officer-involved shooting," 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., and that the officer encountered a male subject and during the encounter, the man reportedly pulled what appeared to be a pistol.
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.