Philip Crouse was 24 when he was shot and killed at the Youth With a Mission training center in Arvada on December 9, 2007. A former trainee, 24-year-old Matthew Murray, who had been dismissed from the program years earlier, arrived at the dormitory that night, was refused permission to stay, and then opened fire. The attack also killed staff member Tiffany Johnson, wounded two others, and prompted Murray to flee.

About 12 hours later Murray carried out a second attack at New Life Church in Colorado Springs, killing two teenage sisters, Stephanie and Rachel Works, and wounding their father and others. Former police officer and volunteer security guard Jeanne Assam engaged Murray in a gunfight and wounded him. Murray then died by a self-inflicted gunshot; an autopsy found drugs in his system and investigators said he had posted anti-Christian statements online in the hours between the shootings.

The killings were described as a planned spree motivated by a grievance against the Christian organizations. Did anyone who knew Philip or who was at the Arvada center that night come forward with additional details about his activities or relationships in the weeks before the attack?