Before being burnt alive, he was a quiet and fairly antisocial teenager, not that people actually knew him very well. But shortly after the incident, he became torturous, aggressive, bloodthirsty, and violent, making him one of the most dangerous serial killers in his hometown. Jeff is widely known for luring his victims to an eternal slumber, using a kitchen knife and eerie but soft tone of voice. Even though he prefers to murder his victims with knives.