I have no idea what to say,
The standard "so sorry for your loss"
Is inadequate.
I can't say I know how you feel,
But, I do imagine it is like losing
Your best friend, and dearest childhood playmate.
I imagine it is a huge hole,
That surprises you each time you catch a glimpse.
It must be the realization that he won't be there,
Silently communicating so many things.
Finishing sentences, a known loving presence.
Since I don't know what to say,
I will have to stick with the inadequate
I am so sorry you lost your brother.
And, if there is anything I can do....