PRIVATE.
Thank you for understanding. At least I have the comfort of knowing that, after I left, my brother led a long, full life. In a way, I'm relieved he didn't come with me. The universe clearly had other plans for him. But that doesn't mean I miss him any less.
I won't elaborate without permission, in case there are overlaps between his future and yours. But for the record, I wouldn't find it intrusive if you did wish to inquire further. And either way I hope that we can become friends here. If you have a fraction of my brother's character, I would be lucky to call you one.