I'm curious to learn how we correlate homicide and mental illness... Obviously, the first thing that comes to mind is antisocial/sociopathic/psychopathic individuals. Has anyone done research about this particular topic? I'm also interested to learn what mental disorder is least likely to result in homicide.
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Hi, Nina! You are right on the consideration of psychopathy and antisocial personality disorder. I am attaching a study you might find interesting. The authors found that "between 1997 and 2006, the number of homicide perpetrators with schizophrenia increased at a rate of 4% per year, those with psychotic symptoms at the time of the offence increased by 6% per year." They attributed this at least in part to substance use.
As a quick side note, for a more unique form of homicide, homicide-suicides, research shows an unsurprisingly high rate of depression (close to 40% of cases). Substance use and psychosis have high rates in these cases as well.