Oh man, that's scary. At least it was resolved peacefully.

Reminds me of a few weeks back when I heard a bunch of sirens out our back entrance (my desk is located right next to our back sliding door) and we looked out and saw about a dozen cop cars with lights on and about six cops with high-powered rifles pointed at the ground walking around.

We heard later through a contact of my roommate's that a guy in the building behind us had stabbed someone and fled, so the cops were there trying to track him down and keep him from hurting anyone else. Unfortunately they never found him that we know of ):

Always scary when stuff like this happens and the police have to get involved.