Joshua plans to kill them all in order to keep his brother from leaving.
"You want me to keep your brother out of it?"
"So to keep every other country and its brother from having nuclear weapons is a good deal for us."
It would be worth a lot to me to keep my brother from finding out.
He and his bride lived near the campus, keeping her little brother with them.
Roberto's done his best to keep his brother out of trouble.
My father even kept my brother and sister from me.
Let us go and see what is keeping our brother.
I would have believed anything to keep my brother from being a monster.
"And, Abbey, promise me that you'll try to keep your brother from getting into more trouble."