If you saw major police activity at/near Highline Medical Center (16251 Sylvester Rd SW) on Thursday morning, Dec. 1, here’s what we know:
- Police say that a mentally-disturbed male was on the roof of the hospital with a folding knife.
- Around 20 police and emergency vehicles were on site.
- Reports of heavily-armed police officers have been seen.
- Police have confirmed that this was NOT an “active shooter” incident. We have heard rumors that the suspect was armed with a gun, but the King County Sheriff’s Office says he had only a folding knife, but he was “yelling and threatening to shoot people.”
- As of 1:07 p.m., police are reporting that the suspect was apprehended and taken to Harborview Medical Center for evaluation.
- Sylvester Road was closed for a while.
- The hospital was reported on lockdown.
- Media (and perhaps police) helicopters were likely hovering overhead.
- Sylvester Middle School – located across the street – went into lockdown as well.

Photos from the scene of Highline Hospital. Subject will be taken to Harborview for mental health evaluation. pic.twitter.com/hxEwEUVRIz
— KingcosoPIO (@kingcosoPIO) December 1, 2016
Subject on roof of Highline Hospital has been taken into custody. Area will be opened back up shortly.
— KingcosoPIO (@kingcosoPIO) December 1, 2016
]]>Negotiators are talking with man in roof of Highline Hospital. Will update as situation changes.
— KingcosoPIO (@kingcosoPIO) December 1, 2016
Hopefully this can be resolved peaceably. It sounds like a case of mental illness.
I can confirm that Sylvester Road was closed from 160th to 164th.
Now why would two people thumbs down this? Makes no sense.
Looks like man was taken into custody, according to police twitter feed.
Interesting that there were still at least 6 or 7 police vehicles at Sylvester Middle School just now, at 6pm. There was one late of Sylvester Rd open due to them.
That was just coincidental,it was a separate incident.