Hassan dahir awees was a khawarij just like atom in puntland we kill al shabaab out in nuclear apocalyptic moryaan triangle you welcome them like that terrorist atom.He was never al-shabab, he was always al-itihad, since the 90's, he fled for his life from them and is under house arrest in Xamar, he is the only man that stuck to his principles and ideology until the very end.
Al-Itihad are more allied to the Muslim Brotherhood, al-shabab is the opposite (at the beginning), now it's just an agent of UAE-America and Ethiopia, these two never liked each other.