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. and 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. and as for pete, the person who was treated in this town like he bore the mark of cain i ve had several low points in my life. there is no scale for this. this changes you forever. reporter: the next chapter wasn t a lift from the book of genesis. more like the story of job. well, one thing that s kind of unique maybe or special about
i tried to help you guys out through this whole thing. you re going to start to cop an attitude i m not copping attitude with you but i m having trouble with some of the stuff you re saying. i know my word doesn t mean [ bleep ]. i was a felon, a drug addict. everybody knows about it. i put up with a lot of [ bleep ]. so this must have put a whole different complexion on paul. it did. reporter: having thought for some time maybe peter was your guy. what was that like? it s possible we may have somebody else to look at. reporter: and indeed they did. attached gps trackers to both peter and paul s vehicles, which produced precisely nothing. more weeks slipped by. eduardo ayala, aware he and his family could be the killer s next target, lay awake at night thinking. i would imagine peter trying to build this bomb. had to do it on a work bench obviously but he s got the
no one in the moore family or any one of the codis data base anyway. odd. had it been planted there to throw off investigators? then one of these envelopes finally gave up what appeared to be a real clue. there was a dna profile from fingerprint ridge detail on the back of one of the stamps that was affixed to the envelopes that one of the letters was sent in. reporter: what came back from these dna tests? a contributor of the dna from the fingerprint material was similar to paul moore. reporter: case closed. right? not this time. this time there was a but. similar to paul moore but it wasn t a match. reporter: the dna sample was so minute forensic scientists were unable to build a full genetic sequence, meaning the dna may have come from paul moore, but the scientists
her go at him. reporter: a courtroom tactic not appreciated by pete. after the first day i said, you guys need to get this lady off of me. she s on me like a dog on a piece of raw meat. and they looked me right in the eye and said there is nothing we can do for you. this is an open investigation and we have to let her ask anything or the jury will think we re hiding stuff. i mean, you ve got to be kidding me. one hour of his testimony felt like eight. i can tell you that. it was excruciating because i knew what he was going through and i was waiting for him to explode at any minute. reporter: paul s attorney linda parisi claimed that pete somehow planted the imprint of the bomb diagram in paul s home. mr. moore who works at that desk daily? he never notices it? if he s your culprit, he never sees an indentation of a diagram he drew and thinks oh, my gosh, thank god i saw that? let me get rid of it. it just raises so many questions.
house. mary ellen is peter moore s wife. couldn t believe it. reporter: did you think it had something to do with what happened to robert? well, i didn t think that at first. i said, what are they doing at our house? i got out of the car and said what the is going on here? two cops came over and grabbed me and escorted me to the front of my house. reporter: mary ellen and peter asked investigators what was going on. they were handed the search warrant stating investigators were looking for anything connected to bomb making. i said how do you know it was a bomb? we don t even know it was a bomb. reporter: that was the first you heard of such a thing? because we thought it was an accident. reporter: did they seem to be accusing the two of you? yes. reporter: both of you? yes. reporter: were you frightened? oh, yes. reporter: what were you afraid of? that they thought we did it. reporter: around colusa the raid on peter s house just days after roberto