eric frain was the exact opposite. his prosecution is still ongoing, so i can't go into much details, but he had made preparations. us as investigates out there looking for him, we found concrete evidence that he was still in that area. it's difficult to say in this case. that's why i want to stress that it's very easy for people to slip out, call someone, hop on a bus. so we need to have the public still be vigilant and maintain -- keep an eye out for these guys. >> back to the scent. there has been some rain. there was an area where it appeared someone had been sleeping. when you think the rain and weather issues impacting that does that give you -- would somebody like that give you a sense, any sort of trace they may find of these guys any sort of hit from the dogs? is it going to -- would you think they would have been there sooner? more recently because the rain might have watched it away if say, it had been two days and there had been rain and the dogs might not have caught the scent? or is it pock they catch a s

most recently eric frain.laser focussed on where to move next. >> things they did, the personalities that they have and we draw a personality profile on them. figure out pretty much how they think. >> reporter: and each one thinks differently. last fall, there was eric frain. the man hunt for him lasted a long 48 days. accused of murdering a state trooper and injuring another, authorities lost sight of him as he evaded capture in the dense woods of pennsylvania. >> everyone has one mission, and that mission is to apprehend this individual. >> reporter: u.s. marshals stumbled upon frain at an abandoned airport. he wasn't armed at the time although authorities did find weapons close to him, including a sniper rifle. christopher dorner kept nearly all of los angeles on edge two years ago. the fired lapd sharpshooter had authorities guessing for nine days. suspected of shooting four people police got a tip he was in the mountains east of los angeles, a man hunt ensued and dorner panicked scaring locals with his gu