Gunman in Mercy Hospital killings targeted his ex-fiancee, an emergency room physician

Gunman in Mercy Hospital killings targeted his ex-fiancee, an emergency room physician  Washington Post Mercy Hospital Chicago Shooting: Mourning 3 innocent victims, including CPD Officer Samuel Jimenez  WLS-TV Argument at Chicago Hospital Erupts Into Deadly Shooting  U.S. News & World Report Chicago hospital shooting: Young cop, doctor, pharmacy resident and gunman die in Mercy Hospital attack  Chicago Tribune 6 dead, 3 wounded in Monday shootings  Chicago Sun-TimesFull coverage