NORTHLAKE, TEXAS (NBC) - A nine-year-old on vacation in Arizona accidentally shot and killed her instructor during a shooting lesson at a gun range.
The tragedy has led to frustration and concern across the country - from those on both sides of the gun control issue.
How young is too young to pull the trigger? Should a child ever handle an automatic weapon or a weapon at all?
And what happens now - after the tragedy in Arizona.
A haunting video from an Arizona gun range shows the final seconds of shooting instructor Charles Vacca's life.
His nine year old student handles a single shot just fine.
But when the Uzi submachine gun is switched to fully automatic, she can't control the weapon. As multiple shots spray the range, at least one strikes Vacca in the head - killing him..
Bob James teaches gun safety to kids and adults just outside of Dallas.
"I'm in a place where my hand can be on that gun very quickly," said James. "Whether it's power tools or handguns, you know if you have a lapse of that vigilance things can get terribly out of control in a hurry."
Which is why many say, even with supervision, a child shouldn't be pulling the trigger.
But that's exactly why Aaron Jent says he's teaching his eight-year-old daughter to shoot..
"She said that she wanted to shoot so i grappled with it," said Jent.
Ultimately he says, it was the words of his instructor that helped him make that decision.
"You can either gun proof your kids or kid proof your guns," said Jent. "One of them is going to work the other one is not. The one that is going to work is the reason we are out here."
Aiming to avoid the heartache that two families are now dealing with, after the tragedy in Arizona.
No charges will be filed after the tragic accident.
Instructors here stress the key to safety with any new shooter is to work slowly, and limit their fire power.