Advocacy groups plan to deliver hundreds of petitions urging the Georgia pardons board to grant clemency to a high-profile death row inmate.
Amnesty International, the NAACP and other groups plan to drop off the petitions Thursday in support of Troy Davis, who is set to be executed next week for the 1989 murder of an off-duty Savannah police officer.
Davis' attorneys have long argued he is innocent of the charges. They say several witnesses have changed their testimony and others have accused another man of the crime.
His execution has been delayed three times since 2007 to allow courts more time to review his arguments. Each time judges have upheld his conviction and death sentence.
Davis' supporters also plan candlelight vigils and a Friday night march to pressure the board.