AS, I'm sorry to hear of your loss. Such a sad story and a cautionary tale of what can happen. My heart goes out to you and your family, your brother in that big ol' house of his, your dad, your half brother, his child and the mother.
There is now a child out there without a father. Probably against the same odds your half brother had in life. Your dad might not have made the best of every opportunity with your half brother, but he still has a chance for his grandchild.
AS, you're a great person and I know will continue to be a great uncle. I thank you for sharing this and for all the support you have shown and given. There is honor in what you've shared and although we don't know him personally, I know he won't be forgotten.
H 49 , W 47 T 23, M 17 S11, S5 BD: 7/18 IHS: 7/18 - 3/19 Physically Separated: 3/19-4/19 Piecing: 4/19 - Current