This is so sad. There's not really a lot we can do to stop these kind of events from happening. Of course the issue of gun control will be brought up, but for now my prayers go out to the families and victims of this tragedy.
I'm thinking about buying a Yamaha Electric Keyboard for the van to stay brushed up on my piano music. Used to play trumpet, but a wake up bugle call may tick off some other expediters. Lol