Parents are asked to look for warning signs in their kids.

Amid a burst of high-profile targeted violence, authorities have identified a new source of terror.

Federal prosecutors have started describing some crimes as the work of "nihilistic violent extremists." One court filing described them as criminals who act "in furtherance of political, social, ...

Strategies to prevent youth radicalization into violence should prioritize a grievance-oriented and trauma-informed approach, ...

The beginning of ninth grade was already shaping up to be a bumpy transition for then-14-year-old Elliott. His longtime friend group from preschool days had fractured. His parents were separating. And ...

Officials investigating a fatal weekend explosion at a desert California fertility clinic that killed one and injured several others said the suspect "had nihilistic ideations" and believed it was ...