they said sharmon had a dislike for matt. the stock's oldest son steve -- >> i think in my head i went to it a little bit just knowing that they hadn't gotten along real well. i had my own suspicion. >> reporter: just two days after the murders, detectives visited matt livers' former employer, asked about his personality, rumors that he had a temper. they put a watch on him and went through his garbage, too. this was in lincoln, about 30 miles from the murder scene. then eight days after the bodies were discovered they asked matt livers to come in and answer some questions. >> you're free to leave at any time. >> i'm here to cooperate with you gentleman. >> reporter: he was unerringly courteous, deferential to the two detectives questioning him. said he'd never been interviewed by police before. >> what do you think happened? >> i don't have any idea. i would like to know why. who, what, when, where and how and why? you know, why would somebody do this to such good people, very christian people? very likable people. >> report