British police say the death of exiled Russian tycoon Boris Berezovsky was "consistent with hanging."
Berezovsky was found dead in a home west of London Saturday.
Police had already said no third party was involved in his death and a medical examiner said there was no sign of a violent struggle. Berezovsky left no suicide note and the reason he apparently took his own life is a mystery.
The 67-year-old Berezovsky made much of his fortune grabbing control of state enterprises after the Soviet Union collapsed in 1991.
He helped boost Vladimir Putin to the presidency in 2000, but left Russia shortly afterward and secured asylum in Britain after a falling out with Putin.
Britain refused Russia's constant demands to extradite Berezovsky to face charges of fraud. He survived one assassination attempt and saw his fortune dwindle to pay off debts related to a lawsuit.