By salient I meant contributing. It is not one way round it is both ways round in a vicious circle. The antisocial are more likely to smoke dope (its in diagnostic criteria for sociopaths DSM4) and the dope is likely to cause them to decompensate and wreak havoc. Plenty studies support this.
Where in hell I found hundreds of murderers - in long stay psych wards, in prisons, in community rehabs, in drug /alcohol treatment facilities and initially in work experience in assessing offenders via courts.
Over 20 years work round the country I have met and known quite well literally in the hundreds.
And sociopaths and narcissists are not such a small part of the population as you think. Vastly underdagnosed and may go up to 5% in our population. Start looking over your shoulder - there are more if less dramatic Jans out there. I was part of the crew that unwillingly released them to the community 1980s and could even tell you the childs play areas the high threat ones hang out at.
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