When Luis Anthony Rivera went to prison 30 years ago, Ronald Reagan was president, no one had heard of the Internet and the Dow hovered around 1,300. He was 29 years old, sentenced to life without parole plus 140 years for conspiracy to distribute cocaine.

Last week, he was released—but not because he was wrongly convicted or granted clemency. It was even more extraordinary. He was released because it was the right thing to do. He had been punished enough.