((((hugs)))) he is the one who got himself arrested, for the horrible behavior of his.... you "just" helped it go faster.

IDK how much more involved you wish to be, can you (do you want to) obtain copies of the police report and see just how much of YOUR information is on it?

I think, if you fear any retribution, then you could then show (or have the copy of report handy to show) local police if you ever see someone suspicious in your neighborhood. That way they will know you aren't "just being paranoid." You know?

Please stay safe.