A devastated family are waiting for the results of a post mortem examination to find out how 27-year-old Mohammed Motala died.
The young man, from Thornton Heath, died after a night out at a shisha bar in Norbury with his friends.
His family found him in his bed on September 18.
They called an ambulance and police but Mr Motala who worked for the Home Office was pronounced dead at his home at 4pm.
Police are not treating the death as suspicious, instead treating it as unexplained.
An inquest is expected to be opened and adjourned in due course.
Leave your tributes to Mohammed Motala below or call the newsdesk on 0208 330 9559.
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