Sirul still tight-lipped on Altantuya's murder mastermind

Earlier this month, after nine years spent in immigration detention in Australia, the former police commando Sirul Azhar Umar was finally set free and now lives with his family in Canberra.

Despite this, he remained tight-lipped about the mystery surrounding who actually ordered the killing of the Mongolian national, Altantuya Shaariibuu...