Troy Davis wants polygraph ahead of execution | Reuters

Troy Davis wants polygraph ahead of execution | Reuters:

Troy Davis wants polygraph ahead of execution

Chris Brown of Atlanta holds a placard as protesters show their support for death row inmate Troy Davis during a rally at the capitol in Atlanta September 20, 2011. A parole board in Georgia on Tuesday denied a last-ditch clemency appeal by Davis, who is set to be executed on Wednesday for the murder of a police officer in a case that has attracted international attention. His case has became a focus for death penalty opponents because seven of nine trial witnesses have recanted their testimony against him, prompting supporters to say he may be innocent. Davis was convicted of the 1989 killing of police officer Mark MacPhail near a Burger King restaurant in the city of Savannah along the Atlantic coast of the southern state.

Credit: Reuters/John Amis

ATLANTA | Wed Sep 21, 2011 8:59am EDT

(Reuters) - A condemned man set to be executed by lethal injection on Wednesday for killing a Georgia police officer in a high-profile case wants a polygraph test in a last-ditch bid to show his innocence, Amnesty International USA said.

Troy Davis' case has attracted international attention and an online protest that has accumulated nearly one million signatures because of doubts expressed in some quarters over whether he killed police officer