The police chief of an Ohio village and two nursing home employees were killed Friday by a gunman who was later found dead inside the care facility, a sheriff said.The slain police chief was identified as Steven Eric Disario, who headed the Kirkersville Police Department, Licking County Sheriff Randy Thorp said.Disario, 36, had only been on the job for about three weeks, Thorp said. He was a father of six children, with a seventh on the way, the sheriff said.