Hoo boy.
He died intestate.
This whole thing will be so mired in controversy. For example,
“There was at least one other sibling identified as a stepbrother, Duane Nelson, who also has died, but Nelson did not list him as an interested party.”
So rumor is that they told this boy growing up that one of his parents made him a sibling of Prince. However, people in the family knew that it wasn’t true.
BUT depending on the law of that state and the circumstances....the dead non-brother could still be an heir and thus his children step into his place. It would depend on if dead parent held son out as his own, etc.