Deliver Us from Evil (1973)
This was one of the first made-for-TV movies and it is a good one. A group of hikers hear on a radio about a skyjacker taking over an airplane and collecting a ransom. Soon thereafter they see a parachutist coming down in the mountains near them. When they run across a lone hiker, they chase him and one of the hikers shoots him to death. Sure enough, the lone hiker is the skyjacker and his backpack has $600,000.00 in it.