Answer
Grant Imahara died of a ruptured intracranial aneurysm on July 13, 2017. An intracranial aneurysm is a weak spot in the wall of an artery in the brain. When it ruptures, it can cause bleeding in the brain and lead to death. The exact cause of Imahara's aneurysm is unknown, but it is possible that he had a genetic predisposition to the condition.