Why Does Evil Exist?

S1 E5: Where does evil come from? In a maximum security prison, Morgan comes face to face with a serial killer, and looks for the physical root of evil in his brain. In an ancient tomb, Egyptologist Salima Ikram shows Morgan a depiction of the "weighing of the heart", and the birth of the belief that what you did in this life mattered in the next. Psychologist Jesse Bering has discovered that children who believe they are being watching by an invisible being obey the rules more than those who don t. Morgan encounters Zoroastrianism, whose belief in a cosmic balance of good and evil inspired the Christian Devil. In India, he discovers that Hindu believes evil stems from the tormented souls of one s ancestors, who are merely in need of release. Morgan explores the idea of redemption, when he meets former Neo Nazi skinhead Bryon Widner, who turned his back on a life of evil.