The gun safety advocacy group just released a study that revealed Tennessee and Memphis lead the nation in children hurt or killed by gun negligence. According to the study, Tennessee tops all 50 states in the number of children hurt so far this year: 20 shot by a parent's negligently stored firearm (Florida is second with 17 children shot so far this year. Texas is third with 15). Twelve of the Tennessee 20 were under the age of 13. Eight were killed. Six involved a child shooting a sibling, cousin, or other relative