The son who succeeded Iran's slain leader was absent from the funeral for Ayatollah Ali Khamenei and four other family members on Sunday, while three other sons showed up and prayed beside the coffins.

Will Mojtaba Khamenei appear at his father's funeral? Some argue the succession ritual demands it. Others aren't sure he's even alive to attend.

Three of Ali Khamenei’s sons joined the mass prayers, but not his successor, Mojtaba, who has not been seen in public since he assumed the role.