Substitute teacher fired after beating of a 15-year-old female high school student goes viral

A substitute teacher has been fired and charged with aggravated assault following the beating of a 15-year-old female high school student in an incident captured on video. Tiffani Shadell Lankford is free on $10,000 bond after her arrest Friday afternoon. If convicted of the second-degree felony, she could be sentenced to two to 20 years in prison.