[William McKinley]

Let's see. Someone shoots at close range, and someone else returns fire (after probably everyone else had hit the deck-- especially the original targets) and you conclude "most likely courtesy of the 'security' guard"?

How on earth do you come up with the guard hitting the two people being more likely than the original shooter?

[GovernmentShrinker]

Could be either way, but firing into a group of 100 people because one of them is a legitimate target isn't a safe procedure. From the story, it sounds as if the shooter got his intended target. Who got the other two victims is still unknown, but the article I posted has a security firing in the direction where two of the wounded were found.