Since you're so sure it's the right decision for everyone, please tell everyone so they can get from you whatever they may want/need while they still can.
What made you decide your brother made the right choice in killing himself? Are you going to tell his children it's a good thing he's dead? And that suicide is a good choice? Or let them figure that out on their own?
I don't understand & I think they'll have questions. I hope you stick around long enough to answer them.
Roadie