canadian border and to cabins barns, remeet houses dozens of places where they might find supplies. second camouflaged clothing. when or how they obtained it is a mystery but it certainly could have made it harder for grounds patrols to spot them. third, pepper. yes, pepper. go in there and get me chilly powder and pepper and curry. a lot of it. reporter: just as cool hand luke used peptory confound tracking dogs early on police dogs appeared to have a strong trail, but then inexplicably lost night we believe that possibly these two males were using pepper to throw the scent off of the dogs who were tracking them. reporter: fourth the inmates had obtained a 20-gauge shotgun. one more thing to make officers move extra cautiously in their pursuit. nbc news obtained these images of a russ particular cabin which
reporter: on the run in the great north woods. the two inmates had to live off their wits and the land. unable to move freely on the roads or in towns where everyone was on the lookout. these are two dangerous individuals. so what kept them ahead of the chase? first they had maps showing just how close they were to the canadian border and to cabins barns, remote houses dozens of places where they might find supplies. second camouflage clothing. when or how they obtained it is a mystery but it could have made it harder for ground patrol to spot them. third, pepper. yes, pepper. you go in there, you give me a chili powder curry, and pepper. look coolhand luke used it to confound tracking dog. early on they had a strong trail. then lost it. we believe that possibly the two males were using pepper to