here's what we do know. police say tibbets was staying at her boyfriend's house in brooklyn, iowa. they say she was dog-sitting while he was working at a construction job about 100 miles away. while they say somebody spotted her while she was out for a run, there's word that she might have actually gone back to the house. relatives say there's evidence on a laptop that she was doing homework that night. tibbets boyfriend, who you see here, claims she sent him a picture over snap chat that made her seem like she was at the house. the boyfriend got worried when she didn't show up for work. he texted her good morning but she didn't look at it. he says that's when he called her family and friends. her father told fax news that people should think up even if they think what they know is insignificant. >> there's somebody out there that knows something and