Complex sentence: On September 4,2013, a 17-year-old student was killed, and three other teen boys were injured during a stabbing attack at the school.Luis, was charged with murder.Luis admitted pulling a knife during the fight and stabbing four people.
Split into simpler sentences: On September 4,2013, a 17-year-old student was killed, and three other teen boys were injured during a stabbing attack at the school. Martell admitted pulling a knife during the fight and stabbing four people.