This article should provide additional information for those "doubting Thomas's", regarding the guilt of Troy Davis:
From NY Post, Friday, September 30, 2011
"Troy Davis was executed in Georgia. Twenty years ago, he was convicted of murdering Mark MacPhail, a 27-year-old police officer working nights as a security guard to support his young family.
On the fateful 1989 evening, Davis, then 20, fired a handgun at a passing car, wounding a passenger. He later met an acquaintance, who was arguing with a homeless man. MacPhail intervened when Davis started pistol-whipping the man.
Davis shot MacPhail in the face and the heart. Over two decades, his death sentence became a cause celebre for anti-capital-punishment activists who whenever the killer is black and the victim white, see conclusive proof of racial animus in the death penalty's imposition.
But Davis received a fair trial (the court actually suppressed important evidence against him), his case was exhaustively reviewed by state and federal courts, and clemency was denied by the governor after an independent review. Though some eyewitnesses recanted, the courts found them suspect hardly enough to overcome the other witnesses and ballistics evidence tying the two shootings to the same gun.
There have been capital cases where compelling demonstrations of innocence give us pause. This is not one of them."
- The editors of the National Review, writing in the magazine's Oct. 17 issue