He wants to die because of his sacrifice of his incoming White murder spread religion in the village. They show responsibility by sacrifice in order to prevent the people in the village have suffered.
He had to die because of his great sacrifice for his religion, kill the white man came to the village. He shows responsibility by sacrificing their lives to protect the people in the village have suffered.
He died because of his great sacrifice, from which he kill white people to spread religion in the village. He take responsibility by sacrifice their life to prevent the village people suffered.