Mass Casualty Incidents in Lincolnshire, Illinois

Every mass casualty incidents report published for Lincolnshire, Illinois, newest first.

Mass Casualty IncidentsAug 16, 2026, 7:42 a.m. ETRevised · v7Chicago, Illinois, United States
Two custodians found dead inside Chicago elementary school
Chicago police said a 63-year-old man and a 48-year-old woman, both school custodians, were found with single gunshot wounds to the head inside Mark Twain Elementary School on Monday, Aug. 10, 2026. A suspect's status is listed as deceased.
Mass Casualty IncidentsAug 15, 2026, 5:33 p.m. ETArlington Heights, Illinois, United States
Cook County sheriff names Arlington Heights man charged in child sexual abuse material case
Cook County Sheriff Thomas J. Dart identified the man charged with dissemination and possession of child sexual abuse material following a search warrant executed on June 16.

Two custodians found dead inside Chicago elementary school