reporter amanda orr.e murder weapon, it's been washed in water for several hours. dennis murphy: kitchen knife or something-- amanda orr: a kitchen knife, a large kitchen knife. it was found in the bathtub. and so any dna that could have been on it from the murderer was gone. it was washed away. dennis murphy (voiceover): what's more, no blood was detected on sandra. in fact, no dna or fingerprints linked sandra to jamie's body, or jamie to sandra's. and while detectives had a hunch about sandra, the evidence didn't seem quite there yet for an indictment. as more time went by, it became clear to members of sandra's family, like her cousin, diana, that law enforcement was eyeing her. ok, it's ok for you to think that. investigate her, and then you'll see that there's nbut as the investigation.de: dragged into july of 2014, their worst fears were realized. liz and her mom found out in a most unusual way. i went to the mailbox, and it had been absolutely filled with flyers from lawyers trying to get our busi