Jaylen Fryberg, the 15-year-old freshman who killed two students at Marysville-Pilchuck High School in Marysville, Wash. on Friday, invited five friends to lunch via text message before opening fire in the cafeteria, according to Snohomish County Sheriff Ty Trenary.

From the Associated Press:

On Friday, after texting five friends to invite them to lunch, he pulled out a handgun in the cafeteria and started shooting. The victims were Zoe R. Galasso, 14, who died at the scene; Gia Soriano, 14, who died at a hospital Sunday night; Shaylee Chuckulnaskit, 14, who remains in critical condition; and his two cousins, Nate Hatch, 14, and Andrew Fryberg, 15.

Hatch, who was shot in the jaw, is the only victim who has shown improvement. He was upgraded to satisfactory condition Monday in intensive care at Harborview Medical Center in Seattle, while Andrew Fryberg remained in critical condition there.

Trenary said the .40 caliber handgun used in the shooting was legally purchased by a member of Fryberg's family, though authorities still aren't sure how the teen obtained the weapon. The Snohomish County Medical Examiner also confirmed on Monday that Fryberg died from a self-inflicted gunshot wound, not during a struggle with a teacher as some students had initially speculated.

[Image via AP]