phone. he said yes he did. i said why didn t you call for help? and he was reaching out like this and he said, i can t. it s in his pocket and he s on fire. yeah, that stays with you. reporter: and now these taunting letters from roberto s killer almost taking prideful delight in how he killed the man and almost murdered the boy. who could it be? who would do such a thing? and why? then four days after the diagram showed up, one of the alpha males of the moore clan walked in the front door. roger moore, paul s dad. and like his son, wanted to help catch the killer and told the detectives he had important evidence to share. it was an audiotape, answering machine messages his nephew pete left on his phone. coming up, investigators discover a brand-new suspect. we may have somebody else to look at. but who are the hunters, and
this and he said, i can t. it s in his pocket and he s on fire. yeah. that stays with you. reporter: and now these taunting letters from roberto s killer almost taking prideful delight in how he killed the man and almost murdered the boy. who could it be? who would do such a thing? and why? then four days after the diagram showed up, one of the alpha males of the moore clan walked in the front door. roger moore. paul s dad. and like his son, wanted to help catch the killer. and told the detectives he had important evidence to share. it was an audiotape, answering machine messages his nephew pete left on his phone.
he said yes he did. i said why didn t you call for help? and he was reaching out like this and he said, i can t. it s in his pocket and he s on fire. yeah. that stays with you. reporter: and now these taunting letters from roberto s killer almost taking prideful delight in how he killed the man and almost murdered the boy. who could it be? who would do such a thing? and why? then four days after the diagram showed up, one of the alpha males of the moore clan walked in the front door. roger moore. paul s dad. and like his son, wanted to help catch the killer. and told the detectives he had important evidence to share. it was an audiotape, answering machine messages his nephew pete left on his phone.
hardly walk-through it. for him to run all that way, it was amazing. i remember asking him if he knew what 911 was. he told me and he was right. i asked if he knew how to use a cell phone. i asked if his dad had a cell phone. yes, he did. why didn t you use your dad s cell phone. he was reaching out like this, he said, i can t, it s in his pocket and he s on fire. yeah, that stays with you. now, these taunting letters from roberto s killer, almost taking prideful delight in how he killed the man, and almost murdered the boy, who could it be? who would do such a thing? and why? then, four days after the diagram showed up, one of the alpha males of the moore clan walked in the front door, roger moore, paul s dad, like his son, wanted to help catch the killer and told the detectives he had important evidence to share. it was an audiotape, answering