hi pfm - wb! i'm sorry it's under sad circumstances.

maybe your brother is feeling jealous of you? because of all the hard work you have done to help yourself be a stronger, happier person? he was also (at least possibly) an abuse victim, and maybe he has failed not only to come to terms with the wrong he did as a perpetrator, but also with the hurt he himself endured.
i don't think this in anyway excuses bad behavior, but it is my idea of a possible explanation for his behavior.
in your position i would absolutely continue to keep myself and my daughter away from him.