43 years for a crime he did not commit.
That's an unjustified assumption.
I think a total of 4 courts have found him not guilty, though its sometimes vague if its the original crime or the subsequent prison murder to which they refer, it was overturned 3 times.
From Nov 2014 to February 2015, the State ignored the court ruling and kept him locked up.
Witnesses and courts have been subsequently discredited, years ago.
He didn't help himself by escaping immediately after his initial ruling then joining the Black Panthers, it doesn't sound like the actions of a person who thought they would be successful on appeal.
This is now a final ruling which is not allowed to be appealed.
It would be easy to believe there is no smoke without fire but we are talking about Louisiana and their acute hatred of the Black Panthers as well as their corrupt court system (the jury foreman was basically a ringer).