detectives looking into the disappearance of larry and elisa mcnabney had made a startling find. iend of larry's claimed elisa had ripped her husband off for more than 100 grand, and it appeared he wasn't her first mark. the young woman was a felon with a long criminal history of theft and fraud. but was she capable of even darker crimes? here, again, is keith morrison. >> it was february 2002, a remote vineyard up in the northern end of california's central valley, a farm worker checking the outer reaches of a giant field of grape couldn't help but see the big words going round and round. something out there. >> vultures were circling. he spotted the vultures so he went out to see what they were circling. >> investigator javier ramos and lieutenant robert bookwalter worked with the san joaquin sheriff's department at the time. >> he thought he was going to find just some dead animal out there. >> but it wasn't a dead animal. the leg that was sticking out of the ground was decidedly human, and soon larry's daughter, tavia, got the news. >> i got a call from the sheriff's departmen

but by the time they went looking for her, just like larry, she was gone. >> who exactly was elisa mcnabney? and what did she know about her husband's disappearance? the investigation heats up when police uncovered dark secrets in a elisa's past. >>> coming up -- >> she was a person out of a '40s film noir movie. she was a stunner physically, but more importantly, she had a control over men that just amazed me. >> when "dateline" continues. n s but what about a lip care routine? pay your lips some attention. the chapstick total hydration collection. exfoliate nourish naturally enhance your lips. chapstick. put your lips first. (boy) got it. (dad) it's slippery. (boy) nooooooo... (grandma) nooooooo... (dad) nooooooo... (dog) yessssss.... (vo) quick, the quicker picker upper! bounty picks up messes quicker and is two times more absorbent than the leading ordinary brand. (boy) hey look, i got it. bounty, the quicker picker upper. hey, darryl. would you choose the network rated #1 in the nation by the experts, or the one awarded by the people? uh... correct! you don't have to choose, 'cause, uh