A duo of heroes—an Army veteran and a drag performer—prized open a door at a Colorado Springs LGBTQ club over the weekend, stopping a gunman from killing or wounding more people.

A man armed with a handgun opened fire at Club Q in downtown San Jose late Saturday, killing at least five people and wounding 18 others, police said.

Club Q, on the eve of Transgender Day of Remembrance, was allegedly shot at with a long rifle by Anderson Lee Aldrich, 22.

Richard Fierro doesn’t know whether the Club Q shooter was firing at the time or about to fire, but he ran toward him anyway.

“I just knew I had to take him down.”

In the wake of the shooting, Richard M. Fierro is being hailed as one of the courageous individuals who sprang into action to stop the murderer. But sadly, his daughter’s boyfriend, Raymond Green Vance, was killed when the assailant initially fired.

In an interview with The New York Times, Fierro, owner of Atrevida Beer Co., a local brewery, remembered taking down the gunman.

“I don’t know exactly what I did, I just went into combat mode,” Fierro told The Times. “I just know I have to kill this guy before he kills us.”