I am so very sorry for your loss of your brother.
There is a song by Vince Gill, called "Go Rest High on that Mountain" that has given me great comfort and strength. This song was written by Vince for his brother that lost his struggle with addiction.
I am not able to post the link (site says I have less than 15 posts?) to hear this song, but if you're interested, google... Go Rest High on that Mountain, Vince Gill, on YouTube.
May God Bless you and your family.
Colleen