I read some more details on Fox today. The weapon was, as I suspected, a Micro Uzi. The barrel is short enough for a child to inadvertantly point it at his own head as the weapon climbs in recoil.
Dad was standing ten feet away taking a picture. Who knows where the "certified instructor" was. Possibly his attention was divided between multiple shooters. My rule when it comes to shooting with children is one supervising adult per shooting child. I don't even take both kids to range at the same time anymore because I can't focus on one at the expense of the other and I cannot allow my attention to wander, even for a split second, from the child holding the gun.
I can remember sitting in my grandfather's lap, steering his 1976 Delta '88 down a turnpike in Indiana when I was about eight years old. It was a great experience. That car later became my first car.
But while my hands were on the steering whell, so were his. And his foot was on the accelerator. What those men did was the equivalent of letting the boy drive the car down the turnpike while they were sitting in the passenger seat.