That is misleading.
killed with a gun - does not say the child was the shooter.
If you can find stats where the child was the shooter it would be more useful.
On average in the United States in 2006, someone died in a fire about every 162 minutes, and someone was injured every 32 minutes (Karter 2007).
So thats 8.8 deaths per day. Sounds like we should ban fire.