Prior to the shooting, Fryberg invited several students, all of whom were friends, to meet him for lunch via text message.
He then pulled out a .40-caliber Beretta Px4 Storm Subcompact handgun[3] and fired at least eight shots,[13][14] shooting several of the students in a "calm, methodical way".
An early eyewitness report stated that an adult school staff member tried to intervene by grabbing Fryberg's arm, inadvertently causing him to fatally shoot himself in the neck.
[2][18][19] The employee was later identified as first-year social studies teacher Megan Silberberger, who tried to apprehend Fryberg as he may have been attempting to reload.
[7][20] Police officials and the Snohomish County medical examiner later clarified that Fryberg committed suicide by shooting himself in the head and that Silberberger did not touch him in the moments preceding his death,[8][9] though she did make an attempt to subdue him.
[28][29] As the school was cleared by local law enforcement officials, students were taken by bus to a nearby church.
[30] It took two hours for officers to evacuate hundreds of students who were still hiding inside the school,[26] and more than 100 witnesses were interviewed by investigators.
[35] On October 30, a memorial service was held for Fryberg at a recreation center on the Tulalip Indian Reservation.
[39][41] On April 16, 2015, Raymond Fryberg reappeared in court and pleaded not guilty to six counts of illegal firearm possession concerning nine guns.
A federal jury found him guilty of knowingly owning firearms that he legally was forbidden to possess.
[43] Zoë Raine Galasso (born February 22, 2000) was killed at the scene by a single gunshot wound to her head.
[10] Nate Hatch, another cousin of Jaylen Fryberg, suffered a single gunshot wound to the jaw and was taken to Harborview Medical Center in Seattle for treatment.
[6] Two female students who were sitting at the same table as the victims, including another cousin of Fryberg's, were not injured by gunfire.
[59] He was later said to have been experiencing difficulties in adjusting to the school environment, with his grades slipping and missing classes for several days.
[60] One week prior to the shooting, Fryberg had been announced as the school's freshman homecoming prince at a football game.
This girl, later identified as Zoë Raine Galasso, was reported to have been dating Fryberg's cousin Andrew at the time.
She told authorities she was forced to end the relationship days prior to the shooting after Fryberg became violent with her.
[67] Washington State Senator John McCoy, a member of the Tulalip tribe, said in a released statement, "I do know the family.
"[68] Washington Governor Jay Inslee also said in a Twitter post regarding the shooting, "Like all of WA, [my wife] and I have everyone at #MPHS in our hearts and prayers.
On November 2, players on the Seahawks and the Oakland Raiders teams wore decals of Marysville Pilchuck High on their helmets during a game at CenturyLink Field in Seattle.
Inactive Seahawks players, coaches, and staff also wore lapel pins bearing the same decals.
They had been scheduled to play Marysville Pilchuck in a playoff game for the division title Friday night, but it was canceled.
Becky Cooke Berg, superintendent of the Marysville School District, said Oak Harbor, Washington had offered to accept second place out of respect for its opponents.