and we don't know the answer to that. >> among the records that were preserved were lie detector results, which fennell took several months after the murder. >> they subjected jimmy fennell to two polygraphs, and he was found deceptive on questions directly implicating him in the murder. >> fennell was asked whether he strangled stacey, and if he dumped her body by the road. he said no to both, but the polygraph expert judged fennell's answers as deceptive. >> if someone fails a polygraph, even though the polygraph is not admissible evidence and it's not, okay -- really? okay, this is your fiance, and you're failing a polygraph, on did you kill her? bells don't go off for people? they certainly were going off for me. >> when fennell, who is judged deceptive on the second polygraph, he invoked his right to counsel and then stopped