Three of the four students injured in Friday's lunchroom shooting at Marysville-Pilchuck High School in Marysville, Washington, remained in critical condition Sunday at hospitals in Everett and Seattle. The fourth student was in serious condition.

The two female victims, identified as Gia Soriano and Shaylee Chuckulnaskit, both 14, are in critical condition at Providence Regional Medical Center in Everett and are being treated for head wounds. The health of Nate Hatch, 14, has improved but he remains in serious condition and Andrew Fryberg, 15, remains in critical condition, the Associated Press reported. Hatch and Fryberg are in the intensive care unit at Harborview Medical Center in Seattle.

"Both girls continue to be surrounded by family and loved ones, and Providence is doing everything possible to support the physical, emotional and spiritual needs of all who have been affected by this tragedy," the hospital said in a statement

Jaylen Fryberg, allegedly opened fire Friday in Marysville-Pilchuck High School's lunchroom, targeting six students sitting at a table. One female victim was killed and Fryberg died of a self-inflicted gunshot wound. The Snohomish County Sheriff’s Office did not identify the shooter but witnesses and relatives said Fryberg was the shooter. Two of the victims were Fryberg's cousins.

A friend identified Zoe Galasso as the student who was killed, Reuters reported. The sheriff's office has not released a motive for the shooting, but it is believed Fryberg had been in an altercation with another male student over a girl.  

The freshman football player was seen as popular and well-liked by his peers and family. Fryberg was a member of Tulalip Indian tribe and the community continues to look for answers following the incident. 

"What triggered him? That's what we need to find out. Because from all we have determined, he was a happy-go-lucky, normal kid." state Sen. John McCoy, a Tulalip tribal member who knew the family, said, the Associated Press reported. A teacher, Megan Silberberger, stopped the shooting, grabbing the gun from Fryberg. It's unclear if the self-inflicted gunshot wound was the result of the intervention.