got home just before 4:00 p.m., tara was gone. they learned tara's last phone call began at 11:49 a.m. ended at 12:05. she'd talked to a colleague at the mall jewelry kiosk where she worked. she said she'd be by, pick up her paycheck, and go shopping. but first, their landlord had arranged for a septic repair company to drop by the house. so, did tara stay and wait? maybe the owner of the repair company knew something. >> one of our criminal investigation division sergeants on his way in to work stopped by this guy's house and asked had he been to tara's home. yes, he had. had he seen tara? yes, he had contact with a female there. and, he said, she was perfectly fine when he left the house early that afternoon. >> reporter: so, assuming that was true, who else came to that little house on the afternoon of october 1st and took away their tara?