I never speculate on the eternal destination of anyone. I cannot see into their souls.
But I believe that if he IS a Christian that he should CONFESS his crimes and accept the due penalty for them. If he is truly repentant, he is forgiven in heaven, but on earth, there is still justice that must be fulfilled. But the fact is that since he was found "Not Guilty", he cannot be charged now for the crime if he were to confess to klling Nicole and Ron. He cannot be tried again for a crime he has already been acquited of. That is our Constitutional protection against "Double Jeopardy".
So he could just admit it now without facing legal consequences....except maybe he could be sued. But they've already DONE that. Basically, they've already done everything to him LEGALLY that they can.
Personally, I believe he already basically DID confess in his creepy, supposedly theoretical account in his book "If I Did It". But he only did it HYPOTHETICALLY in the book...so it isn't TECHNICALLY a confession. But everyone can see what it really is. He wants to confess so badly it is killing him. Perhaps literally. I believe he subconsciously figured out a way to make himself pay for what he did by getting put in prison for some STUPID crime.
He LOOKS as guilty as they come. Everything about him screams "I did it...I got away with murdering my ex wife and her lover....and I truly feel terrible about it, and I cannot live with the guilt."
The stories of him weeping over Nicole's grave, saying, "I'm so sorry".
The book that is only THIS shy of being a full confession that he DID do it.
Getting himself thrown in prison over something stupid.
It all points to a very guilty and very conflicted man.
He needs to confess his guilt if he is in fact guilty. Is a PUBLIC confession a requirement for his salvation? I could not say that. But he needs to confess it to SOMEONE. A priest, a close friend, a therapist...somebody. Maybe he already has.
But I will not say one way or the other whether he is "saved". I cannot see into another man's soul. It is not my place or my right. I can look at what he does and describe what I see. But I cannot judge his soul.
That is for God alone.