Police say a 32-year-old man came to the Twilight Exit looking for his 24-year-old ex-girlfriend, then opened fire after an argument. The gunman shot his ex-girlfriend and a bouncer who tried to intervene.
The victims were taken to the Harborview Medical Center but they're expected to be OK.
When police arrived at the bar, the gunman shot at them, and that's when officer Anthony Ducre fired back, killing the gunman.
Police say the shooter and his ex-girlfriend have a 9-month-old boy together, and the woman told police that the gunman had said during the shooting he had killed their son and dog.
Officers raced to the woman's home and found the baby home alone, unharmed, on a king size bed. Police said it's unclear right now why the mother left her child alone. Police did, however, find a marijuana grow operation in the house, according to a police source.
The baby is now with Child Protective Services.
Meanwhile, Deputy Police Chief Nick Metz praised the bravery of the officers who first went into the bar looking for the gunman.
"Our officers knew there was somebody inside who was actively shooting," Metz said. "And knew if they didn't get in there quickly that there could be more than one, two casualties so our officers immediately went in, put themselves in harm's way and upon entering, were met with gunfire."
Officer Ducre is no stranger to heroism. He was given a Medal of Courage last year for confronting and subduing an armed man at Seattle University.