I am so sorry for what your brother went through. I can understand his inability to trust.

But I think you need to talk to him every day a little - plant a little seed in his mind that he needs therapy and it can help him move on. You can benefit a little from therapy yourself. Maybe, seeing you go to a therapist, your brother may be encouraged to go to one. The reason I am saying that you can benefit from a little therapy yourself is coz - you seem to blame yourself a lot for what your brother underwent. You almost sound like "I failed", when no one could have done anything.

I am sorry for asking....but can you pls elaborate on "I protected him from family?"If your parents are the understanding kind, then maybe they should know what happened to him and all of you can work for helping your brother?