with her. only thing i do is meet adam once a month, pick my money up, and we go. and so she did. police let her go after the interview. like the other women, she had an alibi. which detectives would have to check out of course. but in the meantime, they had another way to get at the truth. one a bit more fool-proof. we had an unknown dna on a robe that came off the victim in the pool. reporter: samira s leopard print robe. if one of those women had thrown samira into the pool, she may have left a little of herself behind. newlin got dna samples from the women. we tried to eliminate all of them. reporter: no matches. not to the women. and not to the handyman. or his son. and not to adam s friend kendall. all of them were cleared. investigators couldn t figure out who the woman in the driveway was. now they were back to square one. and they figured adam frasch was