@alk1975 Said
OCD doesn't produce dangerous people. The opposite actually.
Most depressed people are more dangerous to themselves than anyone else, and still greater, most depressed people aren't even a danger to themselves.
delusions of grandeur is a symptom, a single criteria that must be combined with other criteria before you reach a diagnosable disorder. Also, this is the only thing you listed that would be classified as psychosis. You seem not to know what constitutes psychosis. Inferiority complexes are also a symptom which would need to be combined with additional symptoms to constitute a diagnosable condition.
sociopath isn't an actual diagnosis. More like a commonly used term to define anti-social personality disorder. It also would be addressed most easily with the test I proposed be given to those who wish to purchase a gun. Borderline personality disorder is mostly associated with self harm "cutting", but also frequent threats of suicide, for which many are most happy to be hospitalized. People with schizophrenia almost never commit violent crimes. That is probably the most misunderstood mental illness there is, and posts such as this help to spread those misconceptions.
Temporary insanity is a legal term and not one that would constitute a diagnosis. It is defined as
this
Therefore, people can be passionately angry, and not insane. A person can be greedy (murder the older brother so that one becomes the heir, for example) and not be insane.
A mafia hitman was likely anti-social. Not necessarily though. Most mass shooters have the combination that you ironically missed. Narcissistic personality disorder and anti-social personality disorder. But they don't seek out mental health services. They don't see anything wrong with their behavior. I'm not saying that people with mental illness don't commit crimes, only that it is not a necessary element. It takes but one exception to your rule to prove your rule wrong, and you can't possible prove it correct, as you would have to perform mental capacity tests on every violent criminal ever.
Most of that
is just playing with and picking at words and terms, most of which actually support my opinion.
I suppose we could shift to a set of terms taken straight from The Mental Health Desk Reference, but this more of public forum than a mental health professional's forum (don't get me wrong, I love correct definitions).
"Therefore, people can be passionately angry, and not insane." Is really the closest you came to an argument that people who murder others are not on some level "insane" at the time of the murder. But, at the moment of the "passion" that results in the murder, I still think that the person's mental state is abnormal and could be viewed as "insane"....and I am not talking about legal terms and definitions.
But, maybe I am wrong. Perhaps you could explain how that moment of "passion" that is go intense at which one person kills another is actually a normal state of mind.... being angry and not committing violence vs being angry and killing someone.... ....maybe it is just our natural state that evolved over millions of years...