On July 23, 2007, Joshua Komisarjevsky and a friend carried out a brutal home invasion that left a woman and her two daughters dead and shocked the nation.

According to friends and family, Joshua Komisarjevsky was “a brilliant but troubled young man” who was “very loving, very caring.” Joshua was adopted at two-weeks-old by fundamentalist Christians. His father Benedict has been described as “critical, cold, and controlling”; the mother Jude, “quite submissive.”

Jude homeschooled Joshua using material from the Advanced Training Institute (ATI), the homeschooling curriculum developed by Inge Cannon (the former Director of HSLDA’s National Center for Home Education) for Bill Gothard’s Institute in Basic Life Principles. Jude said that she and her husband Benedict “had tried to instill Christian values in the boy by pulling him out of public school and educating him at home,” but he had nonetheless “wallowed in depression” due to the death of his grandfather a year earlier and had “come under ‘satanic’ influences through other youths” in his hometown of Cheshire, Connecticut. Jude said her son “was easily manipulated and controlled by others,” and she recalled going into his room at one point and “he had written over and over again on the walls: ‘death’ and ‘die’ and ‘suicide.’”

At some point during his childhood, Joshua was raped by “someone he trusted,” allegedly a teenage child that the Komisarjevsky family had fostered. Several years later, Joshua molested his younger sister Naomi. The church that the Komisarjevsky family attended “rejected psychology, psychiatry, or any kind of mental health treatment, and so did Komisarjevsky’s parents.” When Benedict and Jude discovered the sexual abuse in the family, they did not seek any mental health treatment for either Joshua or Naomi.

Right before turning 15, Joshua set fire to a gas station. Since police recognized he had serious mental health issues, he was briefly hospitalized in a mental health hospital and given medication. However, his father did not want him on any medication, and instead sent him to a “faith-based” treatment program.

On July 23, 2007, Joshua and his friend Steven Hayes broke into the home of the Petit family — William, Jennifer, and their daughters, 17-year-old Haley and 11-year-old Michaela. Joshua and Steven held the family hostage for hours. They forced Jennifer to drive to the family’s nearby bank and withdraw $15,000 — on the threat of killing the entire family otherwise. They raped and strangled Jennifer and then sexually assaulted Michaela. William was severely beaten and tied to a post in the basement. Joshua and Steven then doused the house with gasoline and set fire to the house. Haley and Michaela died from smoke inhalation. William managed to escape.

Joshua had specifically targeted the Petit family. A day prior to the killings, he noticed Jennifer and Michaela at a grocery store. He followed them from the store home and made plans to come back the next day with Hayes.

Joshua was found guilty of murder. Evidence of “his strict Christian upbringing, his disturbed behavior as a youth and his parents’ decision not to get traditional psychological treatment for him because of their Christian beliefs” was a significant matter of discussion during his trial. In January 2012, Joshua was sentenced to death. His accomplice, Steven Hayes, was also sentenced to death.