Lets look at a list of games that this kid was probably playing....
Call of Duty:Black Ops II. Who else is a better candidate than this game??? There's a overuse of blood, you can use guns, sledgehammers, and knifes.
Modded Minecraft: could be. But I don't know a single nine-year old who knows how to mod.
Garry's Mod: There's blood, a minecraft mod, and fps mods that could make this happen.
To say more about this situation, only the most irresponsible dad(see that reference?? I'm awesome that way)would let his kid go to school with a gun, a steak knife, and his dad's WORK TOOL!!!!!!!!!
