I'm not omniscient and of course wasn't there, but multiple similar accusations do suggest this guy was guilty guilty guilty. And the jury found him guilty*18.
I'm sure there are a lot of "good cops." The people I knew from high school who became local cops were bullies and assholes in high school. Maybe they became good cops, too. None of us were exactly perfect in high school. That they were assholes then doesn't mean they stayed assholes. Still, the high school asshole to cop career trajectory was telling.