A gunman has killed 6 people including his mother at a nursing home in Croatia, officials say The Associated PressGunman Kills at Least 6 at Nursing Home in Croatia The New York TimesGunman Enters Elder Care Home, Kills Mother and 5 Other People: Reports PEOPLEGunman arrested after killing at least six people in nursing home in Croatia The GuardianCroatia: Several dead in nursing home attack DW (English)