Troy Davis and family
Troy Davis is surrounded by family on a recent visit to him on Georgia’s Death Row.

Jackson, Georgia (CNN) — Troy Davis, whose case drew international attention, was put to death by lethal injection for the 1989 killing of an off-duty police officer in Savannah, Georgia prison officials announced Wednesday night.

The execution followed the U.S. Supreme Court’s rejection of a stay, allowing the state to proceed. Davis was declared dead at 11:08 p.m. ET.

Throughout the day, Davis’ lawyers and high-profile supporters had asked the state and various courts to intervene, arguing he did not murder Mark MacPhail in 1989.

Davis initially had been scheduled to die by lethal injection at 7 p.m. ET. But the proceeding was delayed more than three hours as the justices pondered a plea filed by his attorney.

Several hundred people, most of them opposing the proceeding, gathered outside the state prison in Jackson where Davis, 42, awaited his fate. Others held a vigil in a nearby church.

The inmate’s sister, Martina Davis-Correia, was among those who held a vigil outside the prison. Before the U.S. Supreme Court’s decision, she said officials needed to take more time to examine the case. “When you are looking at someone’s life, you can’t press rewind.”

More than 100 officers, many in riot gear, stood guard over the largely-quiet gathering, which featured candles, occasional prayers and songs. At least three people who crossed the street had been taken away in handcuffs.

Davis’s supporters, who also rallied outside the U.S. Supreme Court building, argued that his conviction was based on the testimony of numerous witnesses who had recanted, including a jailhouse informer who claimed Davis had confessed.

“There’s a genuine feeling among people here and across the nation that we’re about to do the unthinkable,” said Isaac Newton Farris Jr., president of the Southern Christian Leadership Conference.

But prosecutors have stood by the conviction, and every appeal — including the last-minute petitions filed Wednesday — has failed.

Davis’s supporters cheered and hugged each other when news of the earlier delay reached them. But it did not sit well with McPhail’s mother, who remained at home.

“This delay again is very upsetting and I think really unfair to us, because we want this situation closed,” the slain officer’s mother, Anneliese MacPhail, told CNN’s “Anderson Cooper 360” earlier in the evening. She said the execution would bring her “relief and maybe some peace.”

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