"A Tennessee girl, aged 3, accidentally killed herself on Sunday night, according to local police in Wilson County. The incident allegedly occurred after she mistook a gun for a Wii controller..."
-AATG
Update
Update: regarding the alleged resemblance of the Wii controller to the handgun, and possible circumstances of the shooting.
New update: Now features images of the gun and controller involved.
Update: Name of victim and family members released