>> a relieved community turns out to thank law enforcement. the nightmare is over, but the story is still unfolding. even in critical condition, david sweat begins to spill the details about the great escape. he tells investigators he had separated from richard matt five days earlier because matt was slowing him down. sweat says matt was out of shape and hitting the bottle too much after they had broken into a cabin. sweat also shares that they had planned to go to mexico after escaping, but were forced to improvise when prison seamstress joyce mitchell failed to pick them up in the getaway car. >> when mitchell doesn't show up, the mexico plan gets filed and then they headed north towards canada. >> and remember the plan to kill joyce mitchell's husband, lyle? sweat tells investigators it was actually mitchell's idea to kill her husband before they all fled to mexico. her attorney denies that.