25 Most Evil Serial Killers Of The 20th Century

    Ever wonder who are the most evil serial killers of the 20th Century? Checkout this video below to discover who they are and what motivates these serial killers?

    It’s been more than two decades since scientists have attributed geneticists linked MAOA, a coded the enzyme monoamine oxidase-A, deficiency to violent behavior. It is among the most controversial of several genes linked to violence and psychopathic behaviors.

    Mental illnesses have also been linked to genetic causes of serial killers. Harvard scientists jolted the mental-health field when they identified a gene that might lie at the root of schizophrenia. Is there a generic link between serial killers?

    You May Also Like

    Here’s Why Working A 9-5 Is Not ‘All That’

    Postgraduate, mid-twenties, the early thirties — we have all had that moment when we ...

    Chocolate Peanut Butter Poo – The Great Sh*t Debate 2015

    You eagerly open up your favorite festive treat – a Reese’s Peanut Butter Cup ...

    The Indian in the Cupboard Cast: Where Are They Now?

    Cult Classic Comeback… Remember wishing for your own Indian in the cupboard after you ...


    Stay up to date with all things New Theory