A man whose body was found in a well had been assaulted, police said last night.
An initial post mortem examination did not prove conclusive in providing a cause of death and further tests will be carried out, Scotland Yard said.
However, the examination did reveal injuries consistent with an assault, a spokesman added.
Seven men aged between 21 and 27 who were arrested on suspicion of murder have been bailed to a date in late December, pending further investigation.
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