I’ve noticed over the decades, that when a man molests, kills, or beats their “child/daughter/son”, it almost always inevitably turns out to be a stepfather or non-biological father.
It is rarely the biological father.
JUngle Law
=
Kill of the rival animal’s gene pool and replace it with its own.
The most dangerous people in a child's life, in order.
Mommy's Boyfriend
Daddy's Girlfriend
Other family members
Mommy
Non-family members.
Daddy
I will not say it does not happen but it is not usual.