It seems he had a big drinking problem and became violent when drunk. Remember he was denied a visa to the US because of a drunk driving charge and it was also reported he was drinking when he put her in the hospital with broken ribs. My guess is he was remorseful every time it happened and she kept forgiving him. Maybe this time she wasn't around to forgive his drinking and beating tirade so he off himself. 'Just a guess'
Another two deaths and HBO will have a sequel.
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