Authorities say a freight train struck a man and a woman as they walked along some tracks in Pittsburgh, killing the man moments after he pushed the woman out of the way. Pittsburgh police say 20-year-old Conlan Onder, of Baldwin, and the woman apparently didn’t hear the train as it approached them around 5:30 p.m. Wednesday on the Norfolk Southern tracks near Station Square. Onder was pronounced dead at the scene. The woman remains hospitalized today in serious condition.