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Signs of a Psychopath: I Killed Him. Boom. Boom. (S3EP4 Investigation Discovery Tues 28 Sep 2021)



I Killed Him. Boom. Boom.: Police respond to a 911 call to find a father of two dead in his home with more than 15 gunshot wounds. Police question the family, but one person is missing: his mother-in-law. Now detectives must determine if this grandma could be a deadly psychopath.

Airdate: Tues 28 Sep 2021 at 22:00 on Investigation Discovery

Season 3 Episode 4

For every sadistic psychopath…there were signs. Charm. Narcissism. Lack of empathy. Impulsiveness. Manipulation. Deception. These traits and others are the telltale Signs of a Psychopath. This harrowing half-hour archive series revisits some of the most brutal killers in modern history, reviewing news footage and the words of the killers themselves to see which terrifying traits each killer exhibited. What are the signs…of evil?