This profile is part of a series on Islamist leadership in East and Central Africa. Hassan Mahad (or Mahat) Omar (Somali transliteration: ) is a 35-years old irregular sheikh who serves as the ideological and spiritual leader of HSM (Harakat al-Shabaab al-Mujahideen). Al Shabaab fighters consider him as their mufti and his fatwas (legal pronouncements)...