Original sentence: Throughout his trial, Nguyen claimed that he was carrying the drugs in a bid to pay off debts that he owed and to repay legal fees his twin brother Khoa, (a former heroin addict), had incurred in a drug  and affray trial
Edited sentence: Throughout his trial, Nguyen claimed that he was carrying the drugs in a bid to pay off debts that he owed and to repay legal fees his twin brother Khoa, (a former heroin addict, convicted heroin trafficker who had served time in prison and convicted criminal), had incurred in a drug  and affray trial