Ronald Heist, 71, a retired York City Police canine officer was one of two people killed on 3/20/16 during a Pennsylvania Turnpike tollbooth robbery attempt. Danny Crouse, 55 who had been on the job only a few months was also killed. Police identified 54-year-old Clarence Briggs of Newville, a retired state trooper, as the man who attempted the armed holdup at a tollbooth in Fort Littleton, off i-76 in Fulton County, around 7:00 a.m.  Briggs is a former state trooper whose tenure included time spent with a division overseeing turnpike operations in the area and ended with him being honorable discharged in 2012. Briggs was fatally shot by police during the shootout. Heist was assigned to the K-9 corps in 1968 and served with the police dogs until the unit was disbanded in 1970. An avid K-9 handler, Heist trained dogs and launched an elite training program for the dogs.