LAPD and LASD are different orgs, but yeah they are probably both corrupt to the core. I know for a fact that there was a LASD gang called the Compton Executioners that excluded women and people of color.
it was the LAPD that opened fire on two old ladies in a truck that was the wrong type and color in the middle of the day when they were trying to murder their colleague that put out a manifesto about how corrupt they were. Sure he was killing cops that he thought were corrupt but that's against the fold and a sign that they hold themselves to be unaccountable. dorner was the guy who they eventually burned to death in a cabin in the mountains.
the old saying about the rotten apple is not that there is a rotten apple that is alone in the doings it's that the rotten apple spoils the barrel. you see one bad cop and if you don't have a system that stops that you will have a barrel full of rotten cops.
Dorner didn't just publish a manifesto and kill corrupt cops. He also murdered Monica Quan who's only 'fault' was being the daughter of a retired LAPD cop, and he murdered Keith Lawrence who's only crime was being Monica's fiance, with her when she was murdered.
Your whitewashing Dorner for rhetorical effect to make the LAPD look worse. Don't do that. The truth is bad enough, it doesn't need to be 'enhanced'.
It's utterly bizarre to see every time someone mentions Dorner's killings or manifesto, people come out of the woodwork to make sure we don't defend the honor or whitewash Dorner or whatever perceived sin you see of accidently somehow not saying enough bad things about Dorner.