The death of a love is such a terrible feeling that lives we us forever. One that cannot be forgotten no matter how hard we try. I understood exactly how you felt when you heard the news of your brother death. Happened to be in a similar situation about a decade ago but in my case it was the death of my Father. I still remember that day so vividly. Infact I remember the run through that was and week following which was the week of wailing and all.
It initially felt like a dream dream has my mother called that our father stopped breathing after an illness. I initially thought it was just her overacting has she is usually fond of that. I wished and hoped that Thursday night that it was all a joke until the next when reality shook me till my marrow. Woke up that Friday morning with our House filled up to the brim with people I know and I don't know wailing and all. Immediately I knew it had actually happened. I was an unforgettable moment that I wished never happened at that time because I was still in high school.
After that day I always wished that maybe a miracle will happen till I finally witnessed the burial ceremony weeks later. This memories never leave. We all just got to live life the way it is has bad and terrible happen that we never envisage. The only hope is that when we bow out from earth we get to reunite with our loved ones. What a moment it would be. Till then the only to do is to grow in love, create/cherish every moment with family and the people has we don't know when all will be over. The good memories is what will keep us going