The Snohomish County Sheriff’s Office responded to the incident, which was reported in the 15900 block of Highway 99. The three victims are believed to have been roommates of the suspect, who is in custody and is being questioned by police.
One male victim was transported to Harborview Medical Center in critical condition. A second victim, also male, was taken ot the same hospital in serious condition. A female victim was being treated for minor injuries.
At this time, police have no information on the motive for the alleged crime.
This story will be updated as more details become available.