Texas Gov. Rick Perry is being urged to halt the execution of an African-American prisoner scheduled for Thursday night over evidence that a key prosecution witness expressed racial bias during the trial. Duane Buck is set to be put to death for a 1995 double murder. Although Buck’s guilt is not in question, defense attorneys say his death sentence was influenced by the testimony of a state psychologist who argued that African-American criminals are more likely to pose a future danger to the public. In 2000, then-Texas Attorney General John Cornyn said Buck’s sentence and six other cases merited reexamination because of racially charged statements made by the witness, state psychologist Walter Quijano. Buck’s case was never reopened. (For More Information, See Article by Democracy Now! producer Renée Feltz: Will the Next Man Rick Perry Executes Die Because He’s Black? )