Walburn, of Marysville, was pronounced dead later that day at Providence Regional Medical Center Everett. The manner of death is homicide, according to the medical examiner.
Gunfire was reported around 2:40 p.m. at Rucker and Everett avenues, near the Everett Public Library. Walburn and another man were dropped off at the hospital with gunshot wounds soon after.
Police believe those involved in the shooting knew one another. No suspects had been arrested as of Monday afternoon, Everett police officer Aaron Snell said.
Anyone with tips can call the Everett Police Department at 425-257-8450.