COLUMBUS, Ga. (9/12/11)--Columbus, Ga., police are investigating whether one of two men shot and killed by a police officer after a robbery at MEA FCU could have been a bystander whose truck was hijacked by the robbery suspect. Killed in the incident Thursday morning were Tony Carr, a Fort Benning fire inspector, who was a passenger in the truck, and Alrahiem Tolbert, 30, the driver of a pickup truck. Police originally reported the two men were robbery suspects. The incident began when a masked man who ran from the credit union was chased a block by a new police recruit. Tolbert got in the pickup truck with Carr and allegedly tried to back out of Carr's driveway and run over police officer Vincent Lockhart Jr. Lockhart fired several shots, and Tolbert died at the scene. Carr died later of a gunshot wound to the chest. Authorities are trying to determine if he was involved. Carr's brother, Michael Carr, told media he was on the phone with his brother when the incident occurred. In the middle of the conversation, he heard someone say, "Move," and another voice say, "Hey hold on." He said his brother routinely went home for lunch to let his dog out.