Evanston Police Department
Ballistics tests show the .45-caliber handgun used in a Jan. 9 terror spree that started on the South Side and ended in Evanston leaving four people dead and three wounded had been used in previous “shooting incidents” in Chicago, police said.
Tom Ahern, a spokesman for the Chicago Police Department, said he didn’t know whether anyone was killed or wounded in the earlier shootings or when and where they took place.
Investigators have tested the gun that authorities say Jason Nightengale used in the spree earlier this month and have linked it to bullet casings found at other shooting incidents in Chicago that remain under investigation, Ahern said.