A rooftop game of Capture-the-Flag turned fatal in Denver, Colo., Friday night. A 17-year-old boy fell to his death from the roof of the Denver Academy private school around 8:15pm, police confirmed Saturday night. According to another teen who was with the boy, the group of friends was on the roof, jumping from building to building, as part of the game. The victim misjudged the distance to the next ledge on one of his jumps and fell two stories, hitting his head, Fox News reports. Police do not suspect foul play.