 This is Washington's Top News. WTOP News. Facts matter. It's 1.52. A 12-year-old girl has been charged with murder accused of smothering her 8-year-old cousin as the younger girl slapped. Relatives said they had been arguing over an iPhone while visiting their grandmother's home in Tennessee. The county prosecutor, Frederick Agee, says he has seen security video that shows the older child using bedding to suffocate her cousin in the Tompok area.