on Investigators have seized a white box truck at a car rental agency after a shell casing was found inside, police said. Meanwhile, local residents are forced to change their lives. news_crime_sniper_vans_1015_abc.jpg home Sniper Manhunt black video.gif http://abcnews.go.com/sections/us/videofiles/Video/021018sniper_video.ram 10344397503240 Changing Lives -ABCNEWS lock_icon.gif video.gif http://start.real.com/3rd?pid=cnn_wvid&src=CNT.cnn.0.0.0.cnnv1&url=meta%2Fus%2F2002%2F10%2F17%2Fbf.square.one.cnn.r1.smil 10344397503241 Bad Witness -CNN lock_icon.gif lock_icon.gif big_headline