Georgia death case grieves families on both sides

By GREG BLUESTEIN and RUSS BYNUM | September 17, 2011 | 11:25 AM EDT

In this Sept. 14, 2011 photo, Kimberly Davis speaks about her brother Troy Davis, in Savannah, Ga. Her brother was sentenced to death for 1989 killing off-duty police officer Mark MacPhail outside a Savannah bus station. Kim Davis, the middle child of five siblings, says the family has never questioned her brotherís innocence. (AP/Photo Stephen Morton)

SAVANNAH, Ga. (AP) — As execution nears for a Georgia man convicted of killing a police officer 22 years ago, two families show unwavering loyalty to the men at the center of the case.

Troy Anthony Davis is scheduled to die Wednesday for the 1989 killing of Mark MacPhail, an off-duty Savannah police officer who was shot outside a bus station.

Davis insists he's innocent and has avoided execution three times since 2007. His sisters are rallying supporters in advance of a pardons hearing Monday. Kim Davis says her brother helped her walk again after multiple sclerosis crippled her as a teenager.

The slain officer's mother, Anneliese MacPhail of Columbus, says she has no doubt Davis is guilty and his death would help give the family peace after two decades of grieving.