LA CROSSE, Wisconsin (AP) -- Seth Hammes was filming in the woods when his camcorder recorded the crack of gunshots, the 17-year-old's screams and the voice of the alleged shooter, promising help that never came. Authorities say they might never have learned what happened to Hammes, who later died in the woods. "But right next to him was the videotape," Monroe County Sheriff Pete Quirin said Thursday. "That's when we knew we had a homicide on our hands." After viewing and listening to the tape, police tracked down 24-year-old Russell Schroeder, who now faces charges of reckless homicide and reckless...