This was a good documentary of some of the great crimes of the 20th century. I learned a lot about such people as D.B. Cooper, the Boston strangler, Leopold & Loeb, and Charles Manson from it. This was something I had always been interested in, and I bought the tape from Blockbuster to satisfy my curiosity. It did not disappoint. Someone teaching this material in a history class (or other similar class) could use this to help their students learn more about the subject material. Overall, I was very impressed and could recommend it to anyone. It was good.