1. Andrew Wurst
At the tender age of only 14 is when Wurst attended his eighth grade grad dance. Opening fire upon his classmates, he killed John Gillette and seriously wounded two other students and a teacher. Andrew was late when he went to the middle school dance, being held at a restaurant in Edinboro, Pennsylvania, along with his father’s .25 caliber pistol. Wurst left a suicide note at home, but instead opened fire on his classmates, deciding not to turn the gun on himself. Wurst would be convicted of third-degree murder and attempted murder to avoid a trial. He was sentenced to 30 to 60 years behind bars.