NASHVILLE, Tenn. -- A man who said he was "sucker-punched" and knocked senseless said a security guard hired to guard his building encouraged someone to attack him.

Video: Man Says He Was Beaten While Guard Watched

Lonnie Hutton is a resident at Vine Hill Towers, a Nashville high-rise owned by the city for older and disabled citizens.

Channel 4's I-Team reported last week that the security guard, Everett York, turned out to be not only unlicensed, but a convicted sex offender.

Hutton said that on June 19, York distracted him so a second man could blind-side him with a punch to his neck.

"The guy hit me in the head with a ski pole over and over again after he punched me," Hutton said.

Hutton said York just "sat back and watched."

Metropolitan Development and Housing Agency would later find out that York was a convicted sex offender and that the company he worked for, KRC Security, had an expired security license.

On Monday, MDHA fired the company. York will be prosecuted in connection with the attack.

"Why did they hire him? Why did the security company hire him to begin with?" Hutton said.

The security company said it didn't know about the sex offender conviction.

"If I'd have known any way possible this guy was a registered sex offender, I mean, you know, we would have never, ever, ever hired this guy," said owner Michael Kinnard in a previous report.

The second person involved in the case and the person accused of the actual attack is Kenneth Patterson, who’s charged with aggravated assault.

Hutton said he was wearing a Batman mask to try to scare the security guard on the night of the attack and that the ski pole was his ski pole, which he used in place of a cane.