Oh, fine.... Excuse me for my observations using only common sense, and lack of clinical expertise.
The bottom line:a murderer has exonerated of 3 murders, done with willful intent, and no amount of analysis can change that fact.
The extent of psychosis or at whatever level, only confirms the fact that the woman was a sick-o, and deserves the punishment the law provides. If every psychotic murderer were allowed to use the insanity "victim" defense, then the hospitals would have no room for anyone else.
It cannot be denied that mental problems (from societal mal-adjustment to the extreme psychotic) are involved in EVERY murder, but that does not excuse nor remove the guilt from the behavior.