of david sweat's story can authorities really believe? >> they have to you know sort of weave through that. they just don't know. they know he is a convicted cop killer. they know he's escaped from prison. but they are listening to what he has to say. they want to hear what he has to say and he certainly is talking quite a bit from his hospital bed. what he has led authorities to certainly believe is that it was much easier to break out of this place than anyone could have imagined. after two days of questioning david sweat in a lockdown section of albany medical center investigators say they have heard enough for now. sweat telling investigators escaping with richard matt wasn't as complex as you might think. using only hacksaws to cut through cell walls and a steam pipe they slipped out of their cells night after night. finally finding an underground passageway. they came across a sledgehammer likely left by a construction