He was found guilty of one of the murders and was serving life without parole.
Oddly enough, that is now going to be tossed because he died while an appeal was still pending.
Aaron Hernandez's murder conviction is expected to be dismissed posthumously because of a legal rule called "abatement."
"The idea is that if an appeal hasn't happened, there's a chance that a conviction has an error in it," she told CNN. "Rather than have someone with that incomplete decision that they're guilty, the state chooses instead to say that conviction is abated -- as if it never had happened."