Witnesses say police officers tackled a grandfather at an Arizona Wal-Mart Friday, leaving him bloody and unconscious.

The video game section of the Buckeye store got a little rowdy when people started trying to tear open boxes of games, and one woman got punched.

After one man’s grandson got trampled, he put the video game he was holding in his waistband in order to free up his hands and lift the boy out of the crowd, according to KSAZ.

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That’s when cops moved in, slamming the grandfather’s head on the hard Wal-Mart floor. The aftermath was caught on cell phone video.

“Are you sure that was necessary for shoplifting?” one customer asked as the cops cuffed the unconscious man, his head lying in a pool of blood.

“You done knocked the motherfucker out,” another shopper said. “That’s your goddamn job.”

As an officer rolled the man over, it became obvious that he was out cold. Another officer quickly found that more than paper towels were needed to clean up the mess.

“They grabbed the guy, body planted him into the ground — face shatters on concrete,” shopper Skyler Stone told KSAZ. “That’s a hard concrete floor inside Walmart.”

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“All of a sudden, you see this little boy run up and wailing and yelling, ‘Grandpa, Grandpa,’ and crying his eyes out,” Stone added.

Buckeye police claimed that their actions were justified, and that the cell phone video only showed the aftermath. They also said in-store security cameras failed to capture skirmish.

The suspect has been identified as 54-year-old Jerald Newman. He was charged after being treated at a local hospital.

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While the incident is under investigation, the officer in question is still on the job.

Watch this video from David Chadd, uploaded Nov. 25, 2011.

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Watch this video from KSAZ, broadcast Nov. 25, 2011.

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Grandpa Arrested After Black Friday Brawl: MyFoxPHOENIX.com