Deputies located the suspect and the hostages inside a car in a parking lot, where the suspect was pointing a gun at the hostages and threatening to kill them. The suspect opened a rear door of the vehicle and waved the gun at the officers, warning them to stay back.
The suspect pulled the weapon back into the vehicle, leaving the door slightly open. The car windows had dark tinting, making it impossible to see inside the car. Through the small opening of the door, Deputy Brunkow saw the suspect put the gun to the back of a hostage's head.
Fearing for the life of the hostage, Deputy Brunkow fired a single shot from roughly 120 feet away through the 4-inch car door opening, striking the suspect in the head and killing him instantly.
The victims scrambled from the car and ran to the deputies. They later told the deputies, "You saved our lives." The suspect had battered his estranged wife and made threats to kill her and her family for several months leading up to the hostage situation.
"That shot had saved their lives," Boulder County Sheriff Joe Pelle said. "The suspect had just told his brother-in-law to open his eyes and look to the mountains because 'It's the last thing you're ever gonna see.'"