Many threads back, Gitana1 posted an article about MPHS (
Male Pre-partum Homicidal Syndrome). I'm not sure this is the same article, but it gives a brief description.
Forensic Psychiatrist Keith Ablow, MD Identifies New Syndrome in Killers: Male Pre-Partum Homicidal Syndrome (MPHS)
"Ablow theorizes that
Male Pre-partum Homicidal Syndrome occurs in men who come to believe—consciously or unconsciously—that their own life stories cannot continue in any acceptable way, if a child (or another child) is born to them. "Such a man [displaying MPHS] comes to equate the impending birth of a son or daughter with his own impending psychological death. The pathological arithmetic comes down to, 'It's that child or it's me. One of us has to go.'"
Very often, Ablow believes, men displaying MPHS have experienced feelings of loss or trauma in the setting of growing families before—in their families of origin. "These men may have felt pushed aside by a new child in the family or unloved by their own mothers. The idea of living in another growing family is untenable to them, at a deep, emotional, usually unconscious level."