This doesn't have a lot to do w/the discussion but, just as an aside, one of the very, very few times I have ever had to close one of my stores early was when there was a shooting in Manassas at a gas station just a block from one of our stores there.
Logic tells you that Mohammed and Malvo would've made for the hills after the shooting, but it was clear that the employees were nervous being that close to one of the shootings.
They were trying to brave it out, but it was hopeless.