A nine-year-old boy has shot his sister to death in the US after an argument over a video game controller.
After their fight, the boy retrieved a gun from his parents' bedroom and turned it on his sibling.
"He wanted the controller, and I guess he knew where to find the gun," Sheriff Cecil Cantrell told CNN.
The 13-year-old was shot in the back of her head and rushed to hospital in Mississippi. She was unable to be saved and died on Sunday evening (local time).
"He's just nine. I assume he's seen this on video games or TV," Sheriff Cecil Cantrell told a local newspaper, the Clarion-Ledger.
"I don't know if he knew exactly what this would do. I can't answer that. I do know it's a tragedy."
Sheriff Cantrell says it's the first time he's dealt with someone so young shooting a person.
"We don't know yet what kind of charges or if charges will be pressed. We want to make sure we're doing everything correctly," he told the Clarion-Ledger.
"That's why I'm not too fast to say anything because there are juveniles involved."
The case is still being investigated.