Serial killers (or killers in general) are almost always male. Male violence and misogyny are the problems, not the fact that a mother "abandoned" their son. All these killers loathe women. Blaming mothers is such a sexist cliché I can't believe I'm seeing it here. Shouldn't be surprised though. Women are blamed for everything, even their sons' possible murders. Also the idea that murderers/rapists were somehow abused is not true. Some were sure, but not all. So Brian was maybe born that way (sociopaths/psychopaths are mostly boys, not girls). BTW, women experience all kinds of abuse: sexual abuse, rape, beatings on top of being female in a misogynistic society and YET female serial killers are so rare they're almost not a statistic. Same with arsons, rapists, pedos, serial killers, mass shooters, etc. Almost all men. What's men's excuse? Men kill because they love it and get off on it.