That motion and his appeal won't go anywhere, IMO. One axiom in appellate law that I recall is something like "you are not entitled to a perfect trial, only a fair trial"
He had the best lawyers in the state defending him, but when he got up on the witness stand and admitted he had lied for years about not being there at the kennel cooked his goose (plus several other strong indications of guilt). Plus, he never once came clean and told the investigators that he had been there, surely they would have interviewed, asked him did you see anyone, did you hear anyone? Nope, crickets for two years until his testimony. As the trial judge said at sentencing, the evidence of his guilt was overwhelming, I highly doubt an appellate court will give him a new trial.
But . . . I have been known to be wrong before.