This is such a sad miscarriage of justice, it truly shows how Texas' leadership (specifically, the Board of Pardons and Paroles) has no regard for life. You literally have the original case detectives saying he is innocent, the main and really only "expert" witness now discredited, the entire "scientific" basis for the case not simply considered unsound, but in fact shown to be effectively impossible... but Texas be like, "if we get the chance to kill someone, no one's gonna take that away from us".
It's set up so that even the governor can't pardon a death row inmate unless the Pardons and Paroles Board first reviews the case and recommends a pardon, which the board has so far declined to do (and while the state supreme court issued a 30 day stay, the BPP still has not- as far as I've read- agreed to a review hearing).
edit: correction, apparently the BPP heard the case on the 16th, and declined to ask for clemency. Unreal.