On November 24, 1971, a man who came to be known as D. B. Cooper hijacked a plane, jumped out after receiving $200,000 in ransom, and was never seen nor heard from again – kicking off perhaps the greatest manhunt and missing person case in U.S. history. Clues have been uncovered, a small amount of the ransom money was found, a number of people have confessed to being D.B. Cooper (or Dan Cooper, the hijacker’s actual alias), and even more have claimed to know his true identity. Since that identity is still not confirmed 51 years later, we come to the yet another investigator who claims to have proof of the real D. B. Cooper. The investigator has been fairly certain before about a different person, so keep that in mind as we find out who Eric Ulis now thinks is the real D. B. Cooper.