![Jeffery Dahmer was sentenced to 15 consecutive life terms for the murders of 17 men and boys in the Milwaukee area between 1978 and 1991.](https://abc17news.b-cdn.net/abc17news.com/2023/07/cnn-L19jb21wb25lbnRzL2ltYWdlL2luc3RhbmNlcy9pbWFnZS03MmRiYTdiNDQ4YmZiYjk0YzFiYjg5OTNmYTJlNGNkNw-L19wYWdlcy9oX2YzZTY1MTlkM2Y5MGE0YjVjMDZiZWJmNmQwOTc2YzNj-300-375x225.jpg)
What causes someone to become a serial killer? It’s a malignant combination of factors, experts say
By Alaa Elassar, CNN (CNN) — For decades, criminologists and true crime documentaries have attempted to understand what causes serial killers to commit the atrocities they do. Dennis Rader, John Wayne Gacy, Jeffrey Dahmer, Albert DeSalvo and Ted Bundy are just a few of more than 3,600 serial killers documented in the United States as
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