 A 12-year-old girl is charged with murder in connection to the death of her younger cousin in Tennessee. The incident happened at the girl's grandmother's house in Humboldt, where they were staying for the summer. The family tells police a fight over an iPhone prompted the whole thing. They identify the victim as 8-year-old Demiria Hollingsworth. Home surveillance footage shows the older child smother the younger one with bedding and then repositioning her body. The victim's family is hoping for the maximum sentence.