Most serial killers have some early history of trauma or neglect; some, but not all, also engage in early delinquent behavior. A well-known concept, the “Macdonald triad,” posits that repeated ...

Most serial killers have some early history of trauma or neglect; some, but not all, also engage in early delinquent behavior. A well-known concept, the “Macdonald triad,” posits that repeated ...