From a peak of activity in the 1980s, serial killers have been (thankfully) on the decline. But what is behind the drop?
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Aileen: Queen of the Serial Killers: why female murderers are so rare – and the reasons they're likely to snap
Serial killer shows, like Monster: The Ed Gein Story and the equally as disturbing The Serpentabout Charles Sobhraj, have never been more popular – and most of these stories focus on disturbed men ...
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