Dare to take a look deep inside the dark, twisted minds of America's most disturbed mass murderers. This 10-part documentary series explores the motives and events leading up to the most horrifying rage-murder cases in recent history.

Dare to take a look deep inside the dark, twisted minds of America's most disturbed mass murderers. This 10-part documentary series explores the motives and events leading up to the most horrifying rage-murder cases in recent history.