Complex sentence: After the death of his mother, at 8 years Usama's aunt took him in and when she died too, Usama had to move in with this father who by the time weren't in good terms.
Split into simpler sentences: After the death of his mother, at 8 years Usama's aunt took him in. When the aunt then died too, Usama had to move in with this father who by the time weren't in good terms.