A death investigation is underway in Unincorporated Crystal Lake after at least four people were shot, according to the McHenry County Sheriff's Office.
Four people, including the alleged gunman, were killed and another was seriously injured in an early-morning shooting in unincorporated Crystal Lake Wednesday.
Authorities responded to a residence in Crystal Lake, Illinois, just before 4 a.m., when they found four victims with gunshot wounds. Officials are conducting a death investigation.
Four family members, including three females and a male "aggressor," were killed Wednesday at a home in unincorporated Crystal Lake, according to the McHenry County Sheriff s office.