Great post!
I've heard of classes specifically geared at active shooter situations, but they're not as well-known as they should be. ALERRT is a great resource here in Texas, but I'm not sure if they run programs for the public. Always being prepared is the key.

I was talking about this the other day, actually. I carry a Glock on me at all times (Texas) and was having a discussion about whether to hide/escape or try to take out the shooter and prevent more deaths.
It came down essentially to my location. If I was close enough and could be 100% confident in my shot (and not risk any bystanders), I should go for a kill shot (which was another thing we discussed: disarm/disable, or kill?). Otherwise, hide/run.
That decision, while absolutely logical, goes against all my instincts, however.
I hope I'm never put in a situation where I have to run to save myself while other people are still at risk.

What are your thoughts on being caught in that situation if you're armed (and trained)?
Thanks for taking the time to make the video!