Two teenagers were struck by freight trains in Ontario and Alberta on Monday in horrific accidents just hours apart. According to police, a 16-year-old boy was hit by a train as he crossed a rail line in Oshawa, Ont. while texting and listening to music on headphones. He was airlifted to a Toronto hospital, but later died of his injuries. He has not been identified. Hours later, Daniel Michael McPherson, a 19-year-old high-school student, was struck and killed by a freight train in Leduc, Alta., south of Edmonton, while walking between the rails. He was also reportedly wearing headphones, the RCMP said. Serious injuries to pedestrians wearing headphones have more than tripled since 2004, according to a recent study by the University of Maryland. According to the research, three quarters of these accidents are fatal, and the victims almost always male teenagers.