karen lang, right there out for her walk.man watching her with what looks like a pipe hidden behind his back, right there. >> they crossed the small footbridge and there's a short stretch, maybe 50 or 60 yards where there is no visibility unless you are on the path. right there is where he attacks her. >> is that where she was found? >> she was found 30 feet down the path. >> then they found this video recorded by another camera an hour after the attack, say man enters a park bathroom, and minutes later emerges to use the drinking fountain. >> i said it's the same guy. we got the same guy. >> same guy as who? chief roberts remembered. after amyjane was murder, the only witness who saw anything, reported a young man with dark hair wandering near the hotel. >> the description was fairly generic. male, twentysomething, dark hair, a little longer. dark toned skin. we have a second crime a year later almost to the anniversary and here's a male profile image on the network camera system that fits. it fits. >> but who was he? and wh