Serial killers are a distinct breed unto themselves.
The men who abduct children to sexually abuse them and then kill them are doing the killing almost as an afterthought because they cannot risk the child making an identification. More and more women are now falling into this category as lesbianism and bi-sexuality are [unfortuntately] becoming more accepted.
Though I’m loath to admit it, I would hazard a guess that female sexual abuse of children or other less protected folks is on par with men committing the same crime. The difference is probably the female committing the abuse often will use emotional bonding as a tool.
I think with men it’s mostly about threats keeping folks quiet on the sexual or physical abuse.
I realize my reasoning may not make sense.
A large part is based on the fact that millions of women over time willingly let someone [pay someone] to kill their offspring prior to birth. Very, very few men would like anyone cut on them willingly unless it’s almost a life and death issue.
I remember reading over time that statistically women regret their violent crimes on a much lower basis than men. When a women crosses that line, she’s not just made the irrational choice, she’s actually made a rational choice to kill. Men, mostly, it’s about rage/rejection...spur of the moment...