"It would vacate his conviction and get him out of prison. His life after may not be great, but he still has money."
That I can understand -- the getting out of prison part. (Sorry -- I don't pay any attention to most of this and really wasn't aware he was in jail).
As I said in another comment I hadn't realised he was in prison. My level of interest in the lives of convicted paedophiles is -- and this may not come as a surprise -- very low, so I just thought he was trying to clear his name.