(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 ...

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 ...

There’s a fine line between moving through a handful of serious relationships over a long period of time and “serial monogamy,” the pattern of hopping from partner to partner, endlessly. In fact, many ...

If Damien McDaniel is convicted of the 18 murders with which he is charged, he would become the most prolific known killer in Alabama’s history. If he is convicted of just two of those 18 killings, he ...