Mu'tazilah was killed by Usama al-Bakri Abu al-Abbas and the death of Imam al-Shafi'iMu'tazilah was killed by Usama al-Bakri Abu al-Abbas and the death of Imam al-Shafi'iMu'tazilah was killed by Usama al-Bakri Abu al-Abbas and the death of Imam al-Shafi'i