>> coming up -- after just a few hours at the house, detectives leave the scene. >> how can you be done with your investigation that quick? >> so the family decides to do a little detecting of its own. >> there was still water in the tub. we pulled the drain. and we saw black scuff marks. >> when "dateline" continues. e. and that's all thanks to this guy, ted. (ted) oh, just a matter of perspective, really. (brad) apartments-dot-com. the most popular place to find a place. sales are down from last quarter but we are hoping things will pick up by q3. yeah...uh... doug? sorry about that. umm... what...its...um... you alright? [sigh] [ding] never settle with power e*trade. it has powerful, easy-to-use tools to help you find opportunities, 24/7 support when you need answers