I would argue that someone attempting (or succeeding at) suicide does in fact have some form of mental illness. Unless faced with a terminal illness there appears to be no rational way to justify taking one's own life.
Reviews the epidemiology of gun violence and its relationship to mental illness, exploring what we know about those who perpetrate mass shootings and school shootings.
If someone thinks shooting/killing a bunch of innocent people is a viable option - they are nuts. Might not be the technical term for it, but no sane, rational person is going to decide a mass killing is a good thing.
>>I would argue that someone attempting (or succeeding at) suicide does in fact have some form of mental illness.<<
I feel the same way about abortions.