rcmp investigator thomas checked the surveillance cameras.out? it >> and he admitted it. >> straight-up didn't try to lie? >> i don't think you can lie about it when we had a picture of him catching at the atm. >> did you have an explanation? >> yeah. he explained the fact that his wife had disappeared, no money was coming in, he made to pay the bills. it made me wonder about his character. >> he suddenly became suspect number one. though it was hardly a surprise that police would look at the husband. in fact, in the very first week of the investigation. thomas had questioned him three times. >> i introduced myself as a police officer coming to talk to him. and i said how are you doing? and his comment was better. >> better? >> it struck me as of right at the beginning. >> did he seem nervous, upset? >> he didn't strike me as overly concerned. not distraught by any means. >> frustrated, is what he was. he told his sister. >> i said get used to it. euro husband. they're gonna a look at you. because 99% of the time, the husband did it! >> it di

>> by 2000, rcmp council tim peterson retired. >> those unsolved cases stick with you. in the middle and thinking about. them long after. >> and is the 25th anniversary of the crash closed in, with sheriff to pop pondering retirement after four terms, he wondered if what he considered the biggest case he could not solve, would haunt him long after he took off the sheriff star for good. >> this case seemed to really get under your skin. >> jim spent a lot of time talking to the family. and whenever, there was any communication with the victims father, jim would be the one that would talk to him. and he always tried to stay in touch. >> yes, that will certainly get you invested in the case, if you know the family. >> i felt he had a personal investment in it, yes. >> but would share of two pawns investment ever payoff? and, it will cost? coming up. a twist quite out of the blue. she wanted an honest man. >> he deliberately, was untruthful. and it really bothers me. >> she ended up with a wanted man. >> i was like, so would also be lied to me about? >> when dateline contin