Am I remembering wrong that DB Cooper demanded two parachutes?
“[Cooper] requests $200,000 in a knapsack by 5:00 pm. He wants two front parachutes, two back parachutes. He wants the money in negotiable American currency.”[18][b] By requesting two sets of parachutes, Cooper implied he planned to take a hostage with him, thereby discouraging authorities from supplying non-functional equipment.[19]
WIKI