people including barbara brennan saw the last glimpse of shannon before police say she disappeared. >peared to be trying to use her phone, and then mrs. bre issue is dialing are calling. when she looked up shannon was gone. >> a lot of underbrush. really tough going for a guy who was wearing boots in the daylight. i don't know how young woman in valerie issues would have navigated. he thinks that shannon did not go into the marsh and might have not gone they're at all. think she was killed elsewhere and dumped. his lead on who might have done this comes from an unlikely source, an unsolicited phone call to shannon's mother just two days after shannon disappeared. >> in his home, medicated her. why would he say that? even were he to want to comfort larry gilbert as he claimed he did, why does he need to mention. >> three fingers missing when her body was discovered police say they might've been taken away by small animals but he highly doubts that theory. >> attaching and reattaching body parts including fingers. >> i had toi had asked if it was possible the murder happened in hackett'