believe they found the body of mollie tibbetts. police say rivera admitted to them that he chased mollie tibbetts on july 18th while she was out on her jog and she became afraid and asked rivera to get away from her and she said she was going to get out her phone and call police, and rivera says at that point he blacked out and doesn't know what happened next and came to out in this rural area. investigators say they did use a digital footprint to help establish their timeline, perhaps extracting information from mollie's fitbit and iphone. ultimately, it was a surveillance video that showed mollie jogging and rivera's black malibu car that led them to rivera and police say today, he confessed to dumping her body in a cornfield. shannon? >> shannon: matt finn, thank you very much. tonight president trump touched on the mollie tibbetts' case at his rally in west virginia. >> you heard about today with the illegal alien coming in,