wife was talking at the time to 9-1-1 dispatch. and i said, he's dead. >> roger and pam took a polygraph tests. and what do you know, roger was found to be deceptive. and pam was jumpy. the operator couldn't complete the task. but still roger and panned swore up-and-down brought they had nothing to do with it. they were victims himself. truth be told, the police needed some real evidence. when out of the blue, something arrived. >> investigators are confronted with new evidence and strange does not begin to describe it. someone saw the killing in a dream. coming up -- >> i have a photo lineup drawn up. and she puts her finger on it, she puts it right on roger's face. >> when dateline continues. ontinues