which he did quite willingly. took time off on a sunday afternoon and detective salm asked paul directly. do you have a prior criminal record? >> yes. as in drugs and stuff when i was younger. >> reporter: committed felonies in fact. then he said he just grew up and wanted to help now any way he could even if it meant informing on his beloved cousin peter. >> i think pete is a little envious of robert. i think he felt his dad treated robert better than pete got treated and he worked there. he said something about his dad taking him out of the will. >> reporter: one thing, though. paul, like his second cousin dave, didn't think that pete was capable of making that bomb. somebody must have helped him. >> i just don't think pete has the technical ability to do it.