Sniper Clues Police find evidence in Monday's Md. shooting. news_police_tape.jpg 60x45 l http://abcnews.go.com/sections/us/videofiles/Video/021008bowie_video.ram 10340360947720 abcnews.gif lock_icon.gif video.gif http://abcnews.go.com/sections/us/videofiles/Video/021008bowie_video.ram 10340360947721 PLAY lock_icon.gif lock_icon.gif lock_icon.gif headline