Were you justified in being as angry as you were? Yes. But if he really did that then take it up with the police and make sure he's locked up behind bars or something. Don't punch the guy to where he calls the cops on YOU.
Why not go directly to your sister's husband first? If he blows you off, threaten to go to the police.
I bet he already did it again. You're anger is justified and that guy deserves more than a punch in the face, but it doesn't solve the problem. You should have told your mom and sister that you weren't going to go to Thanksgiving at your brother in laws house if his sex offender brother was going to be there and you should also have told them that if he's been flashing them that you would call the police yourself and have him investigated. Something tells me that the brother hasn't gone around the neighborhood and let the neighbors know he's living there. Even without your mom and sister cooperating, the police would have found out that he's violated some terms of his parole/release.
My sister husband is all for his family. I just felt like this was something that had to go straight to the source. If you knew my sister's stupid ass husband you would understand.
Regardless if it solves the problem or not... I aint blamin ya OP. Did you dislocate his jaw? Should have upper cutted him and knock his perv ass out.
Okay, legally here is the deal. 1) If your mother and sister would cooperate with a police investigation the brother could be facing 2 felony charges with his record. 2) If he is registered he also has to register an address and of he lives with your sister but has not made that his perminant address call the police and report that, if they show up and his ID does not match the sexual registration board then he faces a felony charge for that. 3) Hitting him, although deserved, would carry a charge of Assault Causing Bodily Injury- Family Violence, which would carry a Class A Misdemenor punishment. So probably good that you left or you probably would have got locked up, ****ty I know, but it's the law.
You're fine and you did right. Don't worry about what others have to say because its impossible for them to put themselves in your shoes. The important thing is you sent the message and didn't take it too far.
I'm not so sure posting about all this is a good idea. Images of your fist? Putting aside whether the guy deserved it. or that his brother was a fool for bringing him, you need to consider your own personal liability. Lawyers are freakin' expensive, regardless of whether you were right to take action. You can have every moral right on your side and still get in deep when it comes to the law. Having said that, I can imagine my own reaction were it my family involved, and I'm a pacifist.
If it comes down to it I'm sure my sister and my mom would testify against him. I'm ready to deal with the consequences of my actions.