Looks like a suicidal person might have been in crisis and either jumped, shot himself or something. There's multiple police agencies with snipers ready. The bridge is closed and there's a ton of cars diverted to the street exit before the bridge. Some of the people are going back to Kitsap or to the ferrys which basically will take an additional hours. Or you can go to Olympia and go around.

This is freaking crazy. I didn't even want to drive here and now I'm stuck overnight.