OMAHA, Nebraska — Omaha police believed a 62-year-old man shot his daughter, and shot and killed her husband and two young sons before turning the gun on himself early Sunday. Police responded to a radio call just before 1 a.m. and found four people dead inside a west Omaha home, including Richard Wilkinson, 62. Police did not know what events led to the shooting, Omaha Police Sgt. Teresa Negron said. "We're continuing the investigation to attempt to determine what... (GunPolicy.org)