Billings police are on the scene of a shooting with one person dead, Sunday, May 17, 2015. A Montana boy startled at being awakened in the middle of the night fired a shot through his bedroom window and killed the 15-year-old friend who had been knocking and throwing pebbles at his window, police said Monday. (Larry Mayer/The Billings Gazette via AP)

Montana teen killed by friend he was trying to wake

A Montana boy who woke up frightened by two faces looking through his window fired a shot from the gun he kept in his bedroom, not realizing the teenagers on the other side of the glass were his friends.