INITIAL ALERTsocial-media
Verified verbatimPatch (Across Washington) quoting Highline College's official Facebook lockdown post verbatim127 chars
This is not a drill. Close doors, close windows. Police are responding to campus. Do not come to campus if you are on your way.
The first 911 call reporting about eight gunshots came in at 8:52 a.m. PST, and the campus went into lockdown at 8:57 a.m., according to the Seattle Times.
Highline pushed lockdown instructions through Facebook as a primary channel — this first post both ordered shelter and warned commuters not to approach campus.
Highline's main campus hosts roughly 5,000 people on a typical weekday, so the lockdown instruction had to reach a large, dispersed community-college population quickly.