Forbes contributors publish independent expert analyses and insights. I write about relationships, personality, and everyday psychology. Despite the abhorrent atrocities they commit, many people can’t ...

The question "Are serial killers born or made?" inevitably comes up in almost any discussion of the most notorious and most barbaric serial killers in human history (that is, serial killers who not ...

But there are several reasons to think that some serial killers have no genetic predisposition to kill intentionally but are created purely by their environment. One reason is that the heritability of ...