Students leave New Fairfield High School in New Fairfield, Conn., on Sept. 28, 2012. Tyler Giuliano, a student involved in Civil Air Patrol at the school, was killed by his father, Jeffrey Giuliano, during what appeared to be an attempted burglary early Thursday morning. Giuliano fatally shot a masked teenager in self-defense, then discovered that he had killed his son, state police said. (Associated Press)

Photo by: Jessica Hill

Students leave New Fairfield High School in New Fairfield, Conn., on Sept. 28, 2012. Tyler Giuliano, a student involved in Civil Air Patrol at the school, was killed by his father, Jeffrey Giuliano, during what appeared to be an attempted burglary early Thursday morning. Giuliano fatally shot a masked teenager in self-defense, then discovered that he had killed his son, state police said. (Associated Press)