A man who became unresponsive while being arrested in the suburbs of Adelaide two weeks ago has died. Police have launched multiple investigations into the death of 42-year-old Gaurav Kundi who was involved in an incident with two officers at Royston Park at the end of May. South Australia Police Commissioner Grant Stevens says body-worn camera vision has confirmed Mr Kundi did not have a knee placed on his neck or his head slammed into a car negating earlier claims of what happened that night. He has assured the investigations will have several layers of independent oversight.