What happened to your confidence...that he did it? What a change ... now Oswald probably did it? It ok people change their positions, but of course, you have always meant you are 100% sure Oswald probably did it. Sorry for spotting the inconsistency.
Is English your first language? Your reading comprehension is atrocious.
I've always said Oswald probably did it.
Again, try to recognize the sarcasm/tongue-in-cheek/rubbing-it-nature of expressing that conclusion as 'I'm 100% sure that Oswald probably did it'