A woman in West Virginia fatally shot a man who began firing an AR-15-style rifle into a crowd of people that had gathered for a party, authorities said.

Dennis Butler, 37, was killed Wednesday night after he pulled out the rifle and began shooting at dozens of people attending the birthday-graduation party outside an apartment complex in the city of Charleston, police said in a statement.

The woman, who was attending the party, drew a pistol and fired, killing Butler, the statement said. No one at the party was injured. “Instead of running from the threat, she engaged with the threat and saved several lives last night,” Chief of Detectives Tony Hazelett told news outlets Thursday.

The woman, who was attending the party, drew a pistol and fired, killing Butler, the statement said. No one at the party was injured. “Instead of running from the threat, she engaged with the threat and saved several lives last night,” Chief of Detectives Tony Hazelett told news outlets Thursday.

Butler was at the apartment complex earlier in the evening in a vehicle and had been warned to slow down because children were playing, police said. They said he left, but returned later, parked in front of the complex, and began firing.