An honor roll student in Pasco County, Florida was viciously attacked on the school bus by a fellow student who then posted a video of the sickening incident on Facebook and bragged about it.

Chase Cristia, 16, says she was attacked on Friday afternoon after sticking up for a friend earlier that day.

During the brief but brutal beating an unnamed 17-year old girl approached Chase at the back of the bus, grabbed her and then repeatedly punched her in the back of the head and neck at least 10 times.