a full genetic sequence. meaning the dna may have come from paul moore, but the scientists couldn t say it was a 100% match. and while the dna didn t match anyone else in the moore family, including peter, the fact that paul couldn t be excluded was nothing that would hold up in court. it was beyond frustrating. to hear that we have an almost match but we can t say for sure. reporter: still, it did give them an idea. they d get one shot at it. might work. coming up, a killer seemingly revealed by a blank sheet of paper. got chills going back of my neck. when family business continues. (danny) pet care ain t easy.
couldn t say it was a 100% match. and while the dna didn t match anyone else in the moore family including peter, the fact that paul couldn t be excluded was nothing that would hold up in court. it was beyond frustrating. to hear that we have an almost match but we can t say for sure. reporter: still, it did give them an idea. they d get one shot at it. might work. coming up that got my attention right away. exciting doesn t begin to describe. elated maybe. the most amazing thing in the world. this is the smoking gun. a killer seemingly revealed by a blank sheet of paper. got chills going back of my neck. i m like, this is not happening right now. when dateline continues. so the whole world looks different.
the bolt threads in the middle of the page about a third of the way down. and here s that same sheet of paper enhanced by the atf crime lab. and here is the original bomb diagram mailed to investigators back in august. the most amazing thing in the world. this is the smoking gun. unbelievable. couldn t believe it. exciting doesn t begin to describe. elated maybe. reporter: then what happens? i went out and arrested paul moore. coming up, pete moore seems to be in the clear, but he s got yet another shock in store. there is no scale for this. this changes you forever. when dateline continues. nu, not actors, who ve got their eczema under control. with less eczema, you can show more skin. so roll up those sleeves. and help heal your skin from within with dupixent. dupixent is the first treatment of its kind that continuously treats moderate-to-severe eczema,
immediately i looked at this and i m like oh, my god. what he s holding in his hand is an indented writing copy of the diagram that we received in the mail. reporter: this is the sheet of paper detective ruiz found. you can see the indentations of the bolt threads in the middle of the page about a third of the way down. and here s the same sheet of paper enhanced by the atf crime lab. and here is the original bomb diagram mailed to investigators back in august. the most amazing thing in the world. this is the smoking gun. unbelievable. couldn t believe it. exciting doesn t begin to describe. elated maybe. reporter: then what happens? i went out and arrested paul moore. coming up, pete moore seems to be in the clear, but he s got yet another shock in store. there is no scale for this. this changes you forever.
were unable to build a full genetic sequence meaning the dna may have come from paul moore, but the scientists couldn t say it was a 100% match. while the dna didn t match anyone else in the moore family including peter, the fact that paul couldn t be excluded was nothing that would hold up in court. it was beyond frustrating. to hear that we have an almost match but we can t say for sure. reporter: still, it did give them an idea. one shot at it. might work. coming up, a killer seemingly revealed by a blank sheet of paper. got chills going back of my neck. this is not happening right now. when dateline continues. . ahhhhhhh. thresistible scent of gain.