I was a Correctional Officer at America's toughest prison. USP Marion was the ancestor of Alcatraz, yes I did know men who was locked up there, and the parent of the ADX in Colorado. I know some of the current prisoners at the ADX. We had some of the most well known prisoners at the time in USP Marion. John Gotti, the New York Mobster, Woody Harrelson's father, contract killer for the Mob. The man who put the publisher of the Porn Hustler Magazine, Larry Flynt, in a wheelchair, Franklin. Franklin was executed after he left USP Marion. The man who said he was on the grassy knoll in 1963 Dallas.