Troy Anthony Davis (October 9, 1968 – September 21, 2011) was an American man convicted of and executed for the August 19, 1989, murder of police officer Mark MacPhail in Savannah, Georgia. MacPhail was working as a security guard at a Burger King restaurant when he intervened to defend a man being assaulted in a nearby parking lot. During Davis's 1991 trial, seven witnesses testified they had seen Davis shoot MacPhail, and two others testified Davis had confessed the murder to them among 34 witnesses who testified for the prosecution, and six others for the defense, including Davis. Although the murder weapon was not recovered, ballistic evidence presented at trial linked bullets recovered at or near the scene to those at another shooting in which Davis was also charged. He was convicted of murder and various lesser charges, including the earlier shooting, and was sentenced to death in August 1991.