Here are some quick things to know before watching the new HBO documentary.

HBO Max has released the trailer and poster for John Dower’s upcoming documentary The Mystery of D.B. Cooper. For those unfamiliar with the D.B. Cooper case, Cooper was a mystery man who hijacked a 727 out of Portland, traded the passengers’ lives in exchange for $200,000, parachuted out of the plane over Washington State, and was never heard from again. It remains one of the great unsolved mysteries to this day. This is the kind of true crime story I live for because it doesn’t really have a darker tint to it. No one was …