PLEASE

tell me im doing the right thing. My ex bil got in a hit n run. Everyone's telling me to let him learn and not to butt in. But i cant. I let them all know i will not tolerate this in OUR home. He has previous dui. I will not stand by and let him kill someone to "learn" his lesson. I love my sister and niece to pieces and i will not let them or others be victims cause he didnt "learn" this time. Everyone is against me calling but i just cant turn my back. Please tell me . This is my family and hes already hurting my sister and niece with his immaturity and selfish ness.

EDIT: Even though i hate him hes part of this family. Id never want to see my niece without her dad but he needs to grow up and learn NOW.

EDIT: He hit a car and came to our home. Without the car. He says hes going to lie and come up with a bunch of alibi to get away with it because he doesnt want to leave my niece. My sister lives with us which is why he came here. I want to turn him in because this is not his first dui. I had a cousin killed from a dui driver. I remember the anger and pain from that day. I wouldn't forgive myself if he killed himself, someone else, or my sister or niece. Hes very immature and we've all tried talking to him but he is not taking it serious. Of course ill be sad if my niece is without her dad but he doesnt learn its only going to get worse.