Mojtaba Khamenei, the Supreme Leader of Iran, was noticeably absent from his father's funeral, which took place on Sunday. The late Ayatollah Ali Khamenei died in February. Many important officials and his brothers, Masoud, Mostafa, and Meysam, were present. Speculation about Mojtaba's absence is high. Some believe he was injured during recent airstrikes that also killed his father. Officials expect 12 to 20 million mourners to attend the ceremonies across Iran. The funeral is being called the 'funeral of the century.' Khamenei's body now lies in state at Tehran's Grand Mosalla complex. The funeral service is led by Jafar Sobhani, a well-known Shia cleric. Many members of the community are saddened and cry as they pay their respects.