He was exonerated. There was a campaign at the time to continue a smear of his name as given the huge publicity plus the increasingly abolitionist nature of society there was (as it turned out a real) risk that capital punishment could be abolished.
The chances of two killers living under the same roof at the same time defy even my capacity for accepting the incredible.
Of the three cases that get lumped into the story of abolition, Evans is the most convincing. He was innocent of the crime.
Bentley was a little different. Joint enterprise was a long established thing. However whether it could be applied to someone in custody was dubious, and the fact that Bentley probably should not have been tried makes it uncomfortable.
Ruth Ellis was bang to rights as far as I can see, although had there been a defence of extreme emotional distress, the outcome may have been different. For all the handwringing the police dug a bullet out of a wall showing that she was indifferent to the risk to bystanders. That was (for me) probably the concluding fact.
All of which being said, since I disagree with capital punishment, had I been on the jury with no other choice but guilty and hang or innocent, I'd vote innocent. As I suspect was happening at the time.