killing melissa. >> i believe 100% it's him. >> reporter: do you think you'll see her again? the caller asks? you woend. i killed her. >> this was a calculating, stone-cold killer. >> reporter: his call as creepy and chilling clue about a killer or killers who may be watching every move the police make. but monday divers may be back in the water looking for clues and the fbi is taking up a blackhawk hospital with high-tech equipment they don't want to talk about in this ongoing chilling investigation. >> thank you, susan. donald trump always good for a good quote. his latest this afternoon slamming the president. surprise, he wasn't talking about president obama. his target, in just two minutes. [ male announcer ] unrestrained. unexpected. and unlike any hybrid you have ever known. ♪ introducing the most fuel-efficient