Mr. Davis, 42, who was convicted of murdering a Savannah police officer 22 years ago, entered the death chamber shortly before 11 p.m., four hours after the scheduled time. He died at 11:08.
This final chapter before his execution had become an international symbol of the battle over the death penalty and racial imbalance in the justice system.
“It harkens back to some ugly days in the history of this state,” said the Rev. Raphael Warnock of Ebenezer Baptist Church, who visited Mr. Davis on Monday.
Mr. Davis remained defiant at the end, according to reporters who witnessed his death. He looked directly at the members of the family of Mark MacPhail, the officer he was convicted of killing, and told them they had the wrong man.
“I did not personally kill your son, father, brother,” he said. “All I can ask is that you look deeper into this case so you really can finally see the truth.”