KANSAS CITY, Mo. — A veteran T-Mobile Center employee is speaking out after a brutal assault during a concert in Kansas City – an attack that was captured on video and has since gone viral.

66-year-old Thomas Schlange said he never imagined a night on the job would leave him physically and emotionally shaken.

A teenager was arrested after the incident, which happened during Sunday night's NBA YoungBoy concert, but that teen has since been released to their parents as police continue to investigate.

"I think people should be able to go to T-Mobile or any other venue in the city, purchase a ticket and enjoy their show," Schlange told FOX4. "And they should not be interrupted by people who misbehave."

On Sunday, what is normally a fun and entertaining job turned dangerous when a teenager

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