I don’t know if you have the time but your post makes me think of the case of LT Billy Fields of KY.
It was the featured on ID Discovery show Unusual Suspects I think it was Season 6 Episode 4 called Brute Force.
If you have On demand to watch it free with Xfinity, or pay 2.00 to see the episode it’s worth it
https://www.youtube.com/watch?v=gNXHxm6k3GQ
Its horrifying and most people didn’t even know about this case.
This man was a homicide detective became lieutenant was a murderer and corrupt as the come. He destroyed evidence in a murder investigation because he was the actual murderer and rapist of a young single mother.
he was protecting drug dealers and just a dirty cop.
Reminds me of former Col. David Russell William, positions of power seems to attract a few of these characters....or like Pedophiles who chose vocations for access to vulnerable kids. All these deviants have an inner drive to satisfy their need for control and manipulation and charged sexual fantasies.