McMillan, who played for the Cleveland Browns, was shot and killed in May 2013. Prosecutors said he was trying to help Faust, who was a complete stranger, by giving him a ride.

In court, prosecutors said Faust admitted to the shooting.

"'I chased him,' he says, 'then when I caught up to him he tried to fight me and then I shot him,'" DeKalb County Assistant District Attorney Leif Howard quoted Faust as saying.

Howard said Faust didn't know McMillan, but asked him for a ride after seeing him at a gas station.

As they rode in McMillan's red GMC truck Faust tried to rob McMillan using a stolen 380 handgun, according to police.

Stay with Channel 2 Action News and refresh this page for updates on sentencing.