It all started just before 11 a.m. Wednesday when police say 40-year-old Ian Stawicki walked into Cafe Racer, a restaurant and music venue north of the University of Washington.
Once inside, Stawicki reportedly opened fire, killing four people and injuring another.
About 30 minutes later, Stawicki made his way near town hall, fatally shot a woman in a parking lot and stole her SUV. Police located the car about a mile away, but it had been abandoned with a gun in the car.
As officers closed in during a widespread manhunt, the suspect put a gun to his head and pulled the trigger. He was rushed to Harborview Medical Center, where he later died.
It remains unclear what led to the shooting spree. However Stawicki's father said his son was a very private, disgruntled person who was a frequent customer at the coffee shop where the rampage began.
The five victims brought the number of homicides in Seattle so far this year to 21, matching the total for all of last year.
In the last month, there had already been two random killings. A man died last week when he was hit by a stray bullet as he drove, and a woman was killed in a drive-by shooting in late April. No arrests have been made.
The Associated Press contributed to this report.