'Twould be a shame for anyone to spend his last Christmas on earth in a prison. But I suspect he's lucky that's the worst that will happen to him.
It is highly unlikely that he didn;t murder his wife. His best defense so far is that someone shot her while he went back into the restauraunt to get his gun (that accidentally fell out of his pocket while he was in there). Now that makes a good alibi, doesn't it? All the stories about his behaviour and their lifestyle also make the accusation of his murder look plausible as well. If it looks like shrimp, smells like shrimp and tastes like shrimp - it probably is shrimp. BUT; that's why we have jury trials ... to see if all the facts can be presented in a lawful and fair fashion, and see if the jury still believes it's shrimp.
In the case of OJ, I think the jury thought it might be shrimp but didn;t care because they were so pissed off at the fisherman who caught the shrimp!