Research collections
Crime history, documented with context
Choose a collection built around timelines, primary sources, legal outcomes, victim and community impact, and corrections of persistent misinformation.
30 dossiers
Serial killer case files
Research multi-event investigations across countries and eras, with conviction totals and disputed attribution kept separate.
Browse the A–Z archive10 dossiers
Mass violence case records
Victim-centered records of attacks, emergency response, accountability, misinformation, remembrance, and prevention lessons.
Browse mass-violence recordsWhy the collections are separate
Serial murder and public mass violence involve different patterns, evidence, prevention questions, and harms. Combining them into a notoriety ranking would flatten those differences. Each collection uses a structure appropriate to its subject.