we had bomb guys saying it was a bomb, but they're bomb guys. >> reporter: right. >> we're not a hundred percent convinced it's a bomb yet. >> reporter: then, three days after the explosion -- >> we got a visit from paul moore. >> reporter: paul, pete's beloved cousin, the handsome golden boy of the pair told the detective he found something out at the scene of the accident, something that shouldn't have been there. >> he came across a piece of metal that he found. it looked like galvanized iron or metal and that piece of metal said to him that there was something more going on. >> reporter: did he have any other ideas about what may have happened? >> he did. he told us his cousin pete had made some threats toward the victim in the time leading up to the incident. >> reporter: and there was more. paul showed the detective texts he received from peter sent from the very rice field where roberto was killed. >> that text was dated and timed the day before. >> the focus shifts from the