we know from a law enforcement source that richard matt had fallen ill possibly from eating or drinking something that was bad, and sweat left him. he was eventually found 16 miles north just about two miles north of the border with canada. and, as these details come out, brooke, we know investigators are go rg to continue. they want this investigation to reveal exactly how all of this went down so they can prevent it from happening again, brooke. >> the pieces will come together. sara thank you. you know david sweat's time on the run ended in a field just shy of that canadian border two miles away. here say look at the twists and turns in this incredible story that started with guards finding makeshift dummies in the inmates' beds 23 days ago. >> there is a manhunt under way for two convicted murderers who have escaped from prison. >> these are dangerous people and they're nothing to be trifled with and we want the