michael mooney: she had always been a loving mom. i don't think that they thought that she would ave her two adult sons without telling them where she was going. and we just simply don't have any idea why or how this happened. andrea canning: the family decided to hold a press conference. yeah, we were just trying to plead with her to give herself up. we were still fearful for her life and we wanted her to turn herself in. andrea canning (voiceover): but the days ticked by and no one had heard from toby. the national manhunt involving dozens of agents had hit an impasse. at any point, did you start to think, we're not going to catch them? oh, it certainly crossed our mind. but you go over time, and there's very, very few times across history that they don't eventually get caught. it's very rare. andrea canning (voiceover): sure enough, investigators got a promising lead. calls traced to manard's cell phone led them to a used car dealership on the outskirts of kansas city. the salesman remembered a woman who vaguely resembled toby buy