and a cap on the floor. >> reporter: investigators could smell alcohol on matt's body. another clue, when responding officers are inside the cabin, they smell gunpowder outside. >> there was movement what they believe to be coughs. >> reporter: 3:35 friday. a tactical team comes face to face with richard matt. he's shot three times in the head. shortly after matt's death, investigators find a camp near route 41 in malone new york. they discover another important clue. discarded material that matches sweat. >> we believe possibly these two males were using pepper to throw the scent off of the dogs that were tracking them. >> reporter: 3:20 sunday almost 48 hours after matt was killed a state police sergeants ins david sweat jogging down a road near constable new york. sweat is shot and captured.