A veteran took down a knife-wielding man who was threatening employees and shoppers at a South Carolina Walmart last Wednesday, video of the incident shows.

The man was shouting and waving around a pocket knife inside the store in the city of Columbia, threatening to cut people, witnesses and the Richland County Sheriff’s Department told Fox News.

Demario Davis, a veteran who was shopping with his son, spotted the crazed man and waited for his moment to intervene, he told the outlet.

“I was at the checkout when my son noticed the guy walk in with the knife open,” he said. “He then proceeded to the service desk waving the knife at a few female employees.”

He said the man yelled “when the cops get here, I’m going to start cutting you all up.”