I agree with everything said above; it's great advice. Thank you for supporting your brother and being concerned enough to learn about what he's going through. I'm sure you already know that the SOB who hurt your brother has caused your whole family to be in a state, not only wanting to help your brother, but wanting justice or even revenge. This site can help you and your family learn how to deal with your own issues too.
If you fall down 10 times, Stand up 11.