Complex sentence: Upon becoming a sekitori in August 2005 he revealed that he had been married since May 2003 and had a two year old son, who were living with his parents back in Aomori.
Split into simpler sentences: Upon becoming a sekitori in August 2005 he revealed that he had been married since May 2003. His wife and his two year old son were living with his parents back in Aomori.