The former head of Goldman Sachs in Malaysia has been convicted for helping to orchestrate one of the world's biggest financial corruption scandals.A United States (US) jury found Roger Ng guilty on all charges in the trial, which concerned the looting of billions of dollars from Malaysia's 1MDB sovereign wealth fund.He is the only Goldman Sachs banker to face a jury over the scandal, which rocked Malaysian politics and forced the bank to pay billions in fines.He had pleaded not gui