Anyone remember that New Yorker article a while back? I guess it's caused a stir:
In 2005, after the execution, Texas established a commission to investigate forensic errors, and the commission started reviewing the Willingham case. In the course of its review, the commission hired a nationally recognized fire expert who ultimately wrote a "scathing report" concluding that the arson investigation was a joke.
The expert was originally set to testify about his report on Friday, October 2. On Sept. 30, however, Perry suddenly replaced three members of the panel, including the chair, against their wishes. The new chair promptly canceled the hearing. More recently, Perry replaced a fourth member (he can only appoint four -- other state officials appoint the remaining five members).[...]
Of course, his motive is fairly clear. Perry contributed to the execution of an innocent person. And the formal recognition that Texas executed an innocent man would trigger a massive political earthquake -- one that would clarify to an inattentive public the utter barbarity and immorality of Texas's criminal justice system.