SEATTLE - Skyjacker D.B. Cooper jumped from an airplane with ransom money and two parachutes.

But he also left a parachute behind on the plane. On Thursday the FBI showed it off for the first time ever in the 36-year-old cold case.

FBI agent Larry Carr unveiled evidence that's been locked away in the FBI's vault for most of 40 years. For the first time, he revealed D.B. Cooper's plane ticket.

"You can see back in 1971 it was $18.52 to fly from Portland to Seattle'," Carr said.

Cooper actually boarded under the name Dan Cooper -- but it was mis-reported as D.B. -- the name that's stuck for all these years.

Carr showed one of four parachutes that Cooper demanded, along with $200,000, after hijacking the Northwest Orient passenger jet. Cooper's jump has been romanticized as a shrewd and daring crime.

In fact -- Cooper was likely an unskilled skydiver -- who didn't realize the FBI accidentally supplied him with a dummy reserve chute, one of two chutes he jumped with.

(File)

"It was basically sewn shut," Carr said. "It was only for classroom demonstration. So he used that chute and tore the good one apart."

The search for the man known as D.B. Cooper has gone high-tech.

The FBI hopes going public with this D.B. Cooper evidence will jog some memories -- and generate some new leads.