An 18 year old student pulled a knife on a 15 year old female student. Tyler James Hughes was arrested Wednesday on charges of battery, aggravated assault with a deadly weapon without the intent to kill, aggravated child abuse and possession of a deadly weapon on school grounds. He was booked into the Putnam County Jail with bond set at $5,516.Deputies said two girls were arguing at school when Hughes, who was friends with one of the girls, decided to intervene. According to witnesses, Hughes shoved the second girl, then pulled a knife from his pocket and opened the blade, causing the 15-year-old girl to fear for her safety.