Understood. But in this case, as with so many others (as in, nearly every), this is the way it unfolds. By now, it's standard operating procedure. 
 In the course of our conversation here, the death toll in this incident climbed from 12 to 13. This guy walks into a secure military installation, Steven Segals a security guard, steals his gun, then goes on to kill a dozen more people. This (and the preparation for it) - in terms of energy expended by the killer - is comparable to that of the energy expended by Cho Seng Hui @ VT, which, if you go to VT and walk in his steps as I have, you will see, that energy expended was pretty much superhuman. These guys were jacked way up. Then there's the premeditation/preparation; clearly, this guy was thinking in terms of no regard for consequences, others, or self preservation, and far more often than not, this is a state induced by pharmaceuticals. As, these days, thankfully, their own literature states (as if that's enough). So as far as "leaps of the imagination", I don't think I'm leaping very far, but instead, coming to a conclusion based upon the few cited facts available; albeit prematurely, this is all too familiar.