Special Agent Larry Carr of the Seattle office of the FBI has developed some interesting theories in the case of the iconic skyjacker known as D.B. Cooper. Carr, who took over the case two years ago, believes it's possible Cooper took his name from the French-Canadian comic book character Dan Cooper. Carr says that's important because the books were never translated into English, and could mean he spent time overseas. This fits with Carr's theory that Cooper had been in the Air Force.

Carr has developed this profile of Cooper:

-- He served in the Air Force and at some point was stationed in Europe, where he may have become interested in the Dan Cooper comic books.

-- He worked as a cargo loader on planes, giving him knowledge and experience in the aviation industry, which was in its infancy in 1971.

-- Because his job required him to throw cargo out of planes, Cooper would have worn an emergency parachute in case he fell out. This would have provided him with working knowledge of parachutes but not necessarily the functional knowledge to survive the jump he made.

-- He may have come from the East Coast, but taken an aviation job in Seattle when he got out of the military. It's possible he lost his job during an economic downturn in the aviation industry in 1970-71. If he was a loner with little or no family, "nobody would have missed him" after he was gone.

To read more about the latest developments in the case, and to view a video, click here.