This is a flaw in your narrative. The current AG of Texas would not stop the execution – one more dead black man would still be a victory to his politics of cruelty. More than likely, the current AG would sweep the new evidence under the preverbal rug. I recommend changing that to a group like "The Innocence Project" getting so much national and international coverage of their proof the witness was lying. This is the kind of thing the group has actually succeded with in multiple cases. It would be more believable to have that evidence in the hands of the ACLU or a group like The Innocence Project.