A Walmart customer is being “hailed as a hero” after he killed a gunman who wounded two people during a confrontation in Tumwater, Washington on Sunday evening.

A gunman reportedly opened fire inside the Walmart, according to KOMO-TV, then attempted to carjack a vehicle in the parking lot, shooting and injuring the carjack victim.

That’s when an as-yet-unnamed bystander shot and killed the assailant.

“Two other customers also reportedly pulled their weapons in case they were needed,” said KOMO.