In 1971 a man named D.B Cooper decides to hijack a United States plane with the reason of obtaining 200,000 dollars and 4 parachutes, he decides to jump in mid-flight and disappears out of nowhere. The passenger was described as a 45-year-old man, height 1.78 and 1.83, wearing a dark suit, black tie and sunglasses. The man decided to sit in the back, giving the stewardess a note that he decided:
"I have a bomb in my suitcase, I will use it if necessary, I want you to sit next to me."
With the request to obtain 200,000 dollars, 2 back parachutes and 2 emergency parachutes, the stewardess informed the pilot (William Scott), they quickly contacted the Seattle-Tacoma air traffic control center who contacted the police and the FBI. The stewardess, by order of the pilot, had time to find out if the bombs were real, and the man showed the inside of the briefcase with several red cylinders, a large battery and cables. The plane flew around Seattle while the FBI raised money to make sure they could be successfully tracked while the man drank cocktails he could afford, the flight attendants described him as a nice and charming man, the FBI said he only used profanity. The plane managed to land at 5:39 p.m. in Seattle, but Cooper ordered the plane to be directed to a secluded section of the runway, while requesting a person to deliver the money and the material, which a Northwest employee did. He later released the 36 passengers and a flight attendant, but retained Pilot Scott, Flight Attendant Mucklow, Officer Rataczak, and Flight Engineer Anderson. The doubt of the FBI agents was that they did not know the intentions of the hijacker and wondered if he had accomplices on board. Cooper ordered Scoot to fly to Mexico City with precise instructions such as at a relatively low speed, at an altitude of 3000m, meanwhile checking the money and the parachute in detail. Cooper ordered Scott to leave the cabin depressurized, which would make it easier to open any doors to jump in. After takeoff, Cooper asked Mucklow to return to the cabin and the stewardess saw Cooper tying something around her waist. Moments later, the crew was notified that someone wanted to open the rear door of the plane. The crew noticed pressure changes in the cabin, everything indicated that Cooper had jumped from the plane and that was the only time he was heard from. The FBI described that the jump was made at 8:13 p.m. over the southwestern state of Washington, when the plane was passing through a storm. During the investigation several fingerprints, a tie with a pin, 2 of the 4 parachutes and 8 cigarette butts were found, but there was no trace of the kidnapper's briefcase or the money, a rather reliable robot portrait was made based on the testimonials to start the search. In 1972, the FBI began tracking the 10,000 $20 bills used for the ransom, revealing the serial numbers of acos, companies, finances, and other businesses. In 1973 a Portland newspaper promised 1K to the first person to find one of the 2o dollar bills and the Seattle post-intelligencer raised the figure to 5K, but the newspapers received nothing in return as the years passed they found new evidence. In late 1978, a hunter found a banner with instructions to open the rear door of a Boeing 727, later determined to belong to the door of the hijacked plane.
In 1980, an 8-year-old boy was camping with his family when $5,880 in half-destroyed bills was found on the banks of the Columbia River near Vancouver, Washington, after it was determined that the money was part of the ransom paid. Some investigators declared that the money could have reached that place after a dredging that took place in the river in 1974, when they found the money, Cooper's theory was supported, it did not survive the jump.
With the money rescued by the child, the rest of the ransom is still missing, but the series of bills delivered to the kidnapper are in a database that can be consulted by the public.
Suspects
Richard McCoy Jr.
Duane L Weber
Kenneth P. Christiansen
William Gossett
Since the FBI was unable to obtain evidence, I rule out the possibility that they were Cooper's accomplices.
You asked yourself, what happened to Cooper? Did I survive or not? Or because the case hasn't been solved yet?
I think it was always an existing doubt for all of us or even those who were present in 1971.