After serving over nine years in a Nevada prison for armed robbery, former football star O.J. Simpson is now free — and a lot richer than when he went in.

He walked out of the Lovelock Correctional Center just after midnight on Saturday, and while in there, he made between $400,000 and $600,000 from his National Football League pension, according to a calculation done by ESPN. He made over $400,000 if he started taking his pension at age 55, and over $600,000 if he started taking it at 65.