CLEVELAND -- The incident happened in Cumberland County, Kentucky but it's sparking anger and outrage nationally and in Greater Cleveland.
The social media is buzzing with questions about how this could have happened.
A 5-year-old boy accidentally shot and killed his two-year-old sister with a kid-sized .22 rifle he recently got for his birthday.
The children's mother left Caroline Sparks and her brother alone for a minute.
The gun was left loaded with a single shell in the corner of the family home. The gun model is called a "Cricket." It's made in colors including pink and blue, a kid-sized gun to be used by children.
Keystone Sporting Arms in Milton, Pennsylvania calls it "My First Rifle."
Gun laws in Kentucky and Ohio focus more on a legal age for buying guns -- 21.
Dr. Lolita McDavid, of University/Rainbow Babies and Childrens Hospital, just returned from a pediatric conference on gun safety.
She did not know about the rifles specially made for children.
"I'm not sure what parents who are buying a product like that are thinking...I think it's wrong. I came from a military family. We wouldn't buy my son toy guns...We're not talking about a water pistol...We are talking about a .22 caliber gun that has the ability to kill someone and we know it has the ability to kill someone because it did," she said.
Hands-on gun training for children is part of life in many parts of the country.
No word yet if there will be any charges against the parents of the children involved.
The incident gives those arguing for more gun control another emotional incident to be part of their crusade.