i would talk to him all the time. >> reporter: when pete got home would he be upset? >> he would be angry, upset. telling us things we didn't even know if they were true. >> reporter: dave and sue moore told investigators they, too, thought paul had been setting pete up. >> they talk a lot between themselves, too. and i think paul has been able to manipulate peter. >> reporter: but pete just didn't see it. didn't realize he was being played by his cousin. that just couldn't be. >> we grew up together. we were together every day. our parents bought us walkie-talkies when we were 7 and 8 years old. i'd sit in my back bedroom or my bedroom. he lived right down the block on the corner down there and we'd talk to each other until we went to sleep. >> but now peter's cousin paul, the princeling, the golden boy, was about to go on trial for the murder of roberto ayala. as for pete, the person who was treated in this town like he bore the mark of cain --