that's when sweat took off, nearly making it to the woods when cook opened fire. >> the terrain is so dense, you can't see five feet in front of you. if sweat made the tree line he would have been gone. >> sweat and his deceased partner in crime, richard matt used pepper to throw off tracking dogs. >> we had difficulty tracking so it was effective in that respect. >> reporter: matt was killed in a shoot out with police. >> it was an extraordinary circumstance. the first escape in over 100 years, but one escape is one too many. >> reporter: now, chris, law enforcement saying because of where he was found two miles south of the canadian border they believe that's where he was headed. to give you perspective, he was about 16 miles away from where his partner, richard matt was shot and killed on friday. he was unarmed.