Well, if, as is likely, OJ went to Hell, it's a great and terrible tragedy. Yet, we shouldn't presume anyone consign to Hell based on the enormity of their past sins (even assuming he committed the murders, which I don't think was the case), since even the greatest sins are easily wiped away by Our Lord's Passion. Biggest issue for OJ is that he died outside the Church, and he did appear to persist in serial adultery throughout his life. I pray that somehow God could have given him (in the past) the graces necessary to have been saved. Each one of us might also have an "I did it" sign in front of us when we're judged.