Troy Davis was given a lethal injection on Wednesday in Jackson, Georgia, despite last minute attempts at a reprieve and despite protests from all around the world.
Troy Davis supporters gathered in front of the White House in Washington, and outside the prison where Davis was due to be executed to protest and mourn together. International supporters even gathered as far afield as a public square in France.
David was killed by lethal injection for killing an off-duty Georgia policeman in Savannah -- a crime he and others have insisted for years that he did not commit.
Davis' supporters included celebrities and other well-known figures, including past US President Jimmy Carter, the Pope, Rev. Jesse Jackson, Rev. Al Sharpton and rapper Big Boi.
"I feel a mixture of outrage and sadness, sadness because we may lose a life of someone who's not been proven to be guilty," Sharpton said shortly before Davis was given the lethal injection at 11:08 p.m. on Wednesday.
Davis insisted he was innocent from the very beginning. His case saw numerous legal twists and turns, with Davis's lawyers and thousands of supporters around the world protesting his innocence.
There was no physical evidence tying him to the 1989 killing of Mark Allen MacPhail, an off-duty police officer. Since the trial, seven of the nine witnesses who testified against Davis have recanted their testimonies, saying they were pressured into making their original testimonies.
"When there's doubtful evidence about whether someone's guilty, they certainly shouldn't be executed," said Jimmy Carter.
"Everyone who looks a little bit at the case knows that there is too much doubt to execute him," added Nicolas Krameyer from Amnesty International.
Davis also received a lot of support on social networks, with twitter users employed the trending topic "God Loves You" as a chance to show support for him.
"Since god love you is trending I'm gonna tweet about Troy Davis on it. Lol," Kevin BeatDown Brown said.
Lila Lewis offered encouragement for Davis by tweeting, "God loves you Troy Davis!"
(Image shows protestors holding up the photo of Troy Davis)