[andreasvc]

You must have some pretty radical libertarian free will convictions if you don't even grant that mental illness can impair free will--a concept that even in the absence of illness is philosophically highly debatable.

The concept of selfishness is not applicable here, since the individual does not gain anything by suicide, nor does it have anything to do with excessive self love. Suicide is simply an act deemed pathological by society, any other value judgment is bound to be derived from philosophically arbitrary and subjective ethical convictions.