Read Suspected High School Shooter's Revealing Final Social Media Posts

Suspected school shooter Jaylen Fryberg, who is believed to have killed one person and wounded several others at Marysville Pilchuck High School near Seattle on Friday, apparently posted several revealing tweets in the days leading up to the deadly shooting. Fryberg reportedly died of a self-inflicted gunshot.

His final tweet, posted on his reported Twitter account on Thursday, reads: “It won’t last…. It’ll never last….”

But his tweets going back to September and beyond suggest Fryberg may have been dealing with plenty of internal turmoil prior to the shooting.

On Sept. 16, Fryberg wrote, “Fml…” — which stands for “f*** my life.” On Sept. 19, he seemingly posted a cryptic message about someone talking to “someone else.”

Soooo... Our having a kid. And trying to talk to someone else? Hahahaha. Your dumb. Oh!! And she's way younger then you? T'F wrong with you!

— Jaylen Fryberg (@frybergj) September 19, 2014

He would later post, “Did you forget she was my girlfriend?”

On the same day, a seemingly furious Fryberg wrote, “Dude. She tells me everything. And now. I f***ing HATE you! Your no longer my ‘Brother’!”

Still on Sept. 19, Fryberg lamented, “Night f***ing RUINED.”

From the next day, Sept. 20:

I HATE THIS SHIT

— Jaylen Fryberg (@frybergj) September 20, 2014

I'm tired of this shit I'm sooo fucking done!!!

— Jaylen Fryberg (@frybergj)

September 20, 2014

On Oct. 13, Fryberg returned to Twitter with more angry messages. Who the tweets were directed at remains a mystery.

A series of tweets posted on Oct. 21 seemed more depressed than they were angry. Again, the tweets lack crucial context at the moment.

Twitter

On Thursday, he posted his final tweet. On Friday, he allegedly gunned down several people, killing one person and ultimately himself. Police say a legally purchased .40-caliber Beretta handgun was used in the shooting.

It won't last.... It'll never last....

— Jaylen Fryberg (@frybergj) October 23, 2014

KIRO-TV provides several "quick facts" about the deadly shooting:

• 14-year-old gunman dead, 1 female victim dead

• Gunman, Jaylen Fryberg, was freshman at school

• 4 students injured, 3 critically

• 2 victims were cousins of gunman

• Students evacuated from school

• FBI involved in investigation

• All victims under 18-years-old

Students said Fryberg was mostly liked at school, though some claimed he "did have an incident the other day when a kid was being somewhat racist, and he punched him."

It was also reported that he was recently crowned freshman class Homecoming prince.

Jaylen Fryberg (Facebook)

Police had yet to identify a motive in the shooting or confirm the identities of other victims as of Friday evening. The deceased victim was a female, officials said.

KIRO-TV reporter Deborah Horne reported that the family identified one of the victims was Fryberg's own cousin, Andrew. He was reportedly airlifted to Harborview for treatment. The second male victim was identified as 14-year-old Nate Hatch.

Just in: #MarysvilleShooting family confirmed Shooter Jaylen Fryberg and victim Andrew Fryberg at Harborview are cousins. @KIRO7Seattle

— DeborahHorne (@DeborahKIRO7) October 24, 2014

KIRO-TV also identified one of the surviving female victims as Shaylee Chuckulnaskit. The girl's uncle reportedly told the news station his niece was shot in the head and it wasn't clear if she would survive. Chuckulnaskit and another female victim remained in critical condition on Friday.

Earlier on Friday, Chief Medical Officer Joanne Roberts said three victims had head wounds and were in “critical” condition, while one considered stable enough to transport was taken to another medical center in Seattle.