AURORA, Colo. (CBS4) – A security guard at a King Soopers in Aurora suffered serious injuries after he confronted a suspected shoplifter. It happened on Oct. 6 at the store on Mississippi Avenue and Chambers Road.

Aurora police say the suspect attacked the security officer so badly he was knocked unconscious. They say the suspect kicked the man in the face leaving a shoe print on his face.

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aurora king soopers shoplift attack (aurora police)

A King Soopers security guard was injured during an attack in Aurora. (credit: CBS)

Someone saw the attack happening and stepped in to stop it. That person and the suspect then began to fight.

The suspect then left. Police describe him as a 6-foot-tall Asian man with a mustache and black rimmed glasses.

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aurora king soopers shoplift attack (aurora police)

Suspect in assault of security guard at an Aurora King Soopers. (credit: Aurora)

The security guard is now recovering at home.

Metro Denver Crimestoppers offered $2,000 for a reward, and the Aurora Reward Fund matched that. King Soopers added $5,000 Monday evening, bringing the total reward to $9,000.

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Tipsters are asked to call Agent Antony Green with information at 303-739-6382.