I'm not sure where father in law wound up and I'm not all that concerned about that end of it.
husband was the "bad seed", the one child chosen to be the target of terrible physical and emotional abuse.
I can remember one winter's night when it was sleeting terribly and my dad asked s2bDH to stay over as he was concerned about his safety driving.
Dad of course insisted that my boyfriend call home to get permission to spend the night (on the rec room sofa).
boyfriend said, "Don't bother. No one cares where I am."
Finally, boyfriend called with my dad on the extension. Sure enough, father in law said, "Whatever" and hung up on my dad.
Later that night boyfriend said, "Mr L, could I please use your shower nd borrow something to sleeep in?"
In the process of boyfriend changing into sleep clothes, dad got a look at the bruises and old scars on his back and chest.
He called CPS with boyfriend begging him not to for fear his brother and cousin would be taken away.
It turned out that father in law had taken to beating boyfriend with a coat hanger or electric cord, the scars faded as he grew older, at least the physical ones, but my dad said at the time it looked like boyfriend had been flogged.