This comprehensive educational presentation provides a deep dive into the "Incel" (involuntary celibate) subculture, its underlying ideologies, and its connection to domestic terrorism and violent extremism. Designed for senior high school or college-level courses in Sociology, Criminology, Psychology, or Contemporary Social Issues, this resource explores the complex intersections of mental health, online radicalization, and gender-based violence.Learning ObjectivesBy the end of this lesson,