[InOne]

Originally Posted by WOMBAI

Probably a combination of nature and nurture - ie. low intelligence and being easily led, not being 'wired-up' properly, environment - dysfunctional family background and bad role models, feelings of anger based on low self-esteem and inadequacy - leading to attention seeking behaviour - the list goes on. Very difficult though to have any sympathy for those that show none for others.

Many people who commit unspeakable acts are of pretty high intelligence.