The age-old problem is that we have only the behaviour of the ones who got caught to use as a baseline, and without at least some comparative data on undetected serial killers, we have no conclusive way to say how representative the behaviour of captured serial killers is compared to the pool of all serial killers.
On my more cynical days, I expect some sociologist to propose amnesty for murderers so they don't exist "out of sight", and can be properly studied.
On my more cynical days, I expect some sociologist to propose amnesty for murderers so they don't exist "out of sight", and can be properly studied.
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