. >> one of the questions, did you cause the death of diane dyne bill's answer no. her question did you lie about kevin being on top of diane on august 15th 2010? bill's answer once again no. according to the test results, both of those answers showed deception. >> central stuff. not that stuff. did you lie. >> i did not lie. that's why they do not use them in courtrooms because they can issue false readings. >> if the guy is flunking the tests and the son says he did i, it's not a good set of facts, is it? >> no, that's why we have to attack bill. >> did they ever. along with detective anthony stevens brought bill in for more questioning the same day he flunked the polygraph test and put the screws to him. >> she is dead and there are two people that could have done it and his dna is not on his neck yours is. >> you already knew she was dead. that's why you didn't go in the room. >> and the only way you could have known that is to possibly be involved. >> it was a withering interrogation and bill kyne cracked and changed his story and said he did, in fact go into th