A substitute teacher in the US 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 US$10,000 bond after her arrest on Friday afternoon. If convicted of the second-degree felony, she could be sentenced to two to 20 years in prison.
Video of last week's incident in a foreign-language class at Lehman High School in Kyle, Texas, about 32km south of Austin went viral.
![The video of the incident went viral.](https://www.nzherald.co.nz/resizer/v2/NAJEZXPMI27V746IWZZFZZS5EE.jpg?auth=a5509e28b4b59ab099937007d304e3aeedbc0dacaad0b6b3e65249a31406e8e0&width=16&height=15&quality=70&smart=true)
Court records list no attorney for the 32-year-old San Marcos woman, and her telephone number is not published.