For those who don't know (I didn't), D. B. Cooper is a 1971 hijacker who skydived out the back of a 727 with a $200,000 ransom and was never found. https://en.

For those who don't know (I didn't), D. B. Cooper is a 1971 hijacker who skydived out the back of a 727 with a $200,000 ransom and was never found. https://en.wikipedia.org/wiki/D._B._Cooper https://en.wikipedia.org/wiki/D._B._Cooper