[fish hawk]

I just looked this gun up and the clip holds 20 rounds. That means he would have used 5 clips. I they can’t find all the clips they better start looking for a second shooter.

[egfowler3]

Several of the news reports out there have stated that when the medics got to him they found his side pockets (can't remember what they're called at this time of night) full of magazines, all fully loaded.

And, since he was shot outside, arguments of friendly fire need to die. Furthermore, reports from witnesses state he was the lone shooter and was very methodical about it, sometimes using a second round to ensure he actually killed someone. That was what he was doing when our heroine ended his killing spree.

And a last observation from news reports and experience, he chose a location with people lined up and grouped. That made his desire to maximize his body count simple. Everyone was lined up like ducks in a shooting gallery.