Streisand effect
ETA: The shooter does not appear to be associated with the university, as Kanzen said the title and the OP.
The Olympian reported that the shooter who called in the threat to police said:
Yes, I’m on my way to Evergreen University now with a .44 Magnum. I am gonna execute as many people on that campus as I can get a hold of. You have that? What’s going on there? You communist, scumbag town. I’m going to murder as many people on that campus as I can. Just keep your eyes open, you scumbag.”
Reading what the shooter said, it appears that he is not associated with the campus (says he's traveling to Evergreen, refers to it as "that campus" twice, calls Olympia a "scumbag town," says he will kill as many people as he can or can get ahold of which implies anger at students, and he throws out communist as an insult). In fact, he flat-out states that he is traveling to the campus to shoot up "scumbags" and "communists," which implies to me that he heard about the Evergreen protests on Breitbart or Fox news. This lockdown appears to be caused not by protesters, but by a person upset about the protests. Doesn't really surprise me as the alt-right is angry and easily "triggered," to borrow their terminology.
Now, it is theoretically possible that a protester called this in as a "false-flag," but there is nothing supporting that conclusion at the moment and it relies on rank speculation. So, I must ask, at this point, why did Kanzen ignore critical parts of the story to tell us:
Weinstein was supposed to be back on campus doing his job today, and this lead to violent threats from the protesters that have caused the College to close all day. This has crossed the line, this isn't activism or protesting now, this is bullying, intimidation and bordering on terrorism.
Because this is the fifth or sixth time that you have set off my bullshit detector, Kanzen.