Every Friday, we're bringing you one episode of the series ‘Degrees of Abuse’ produced by Al Jazeera’s Investigative Unit.

The PhD student at Glasgow University was charismatic and charming and part of his appeal was his tragic past. But his relationships with several women became abusive and controlling.  As our investigation dug deeper into his history in his home country, we uncovered his lies and the real story of his murdered wife.

*Please note some listeners may find these accounts upsetting. 

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