Russian tycoon fell from a hotel window in India on December 25 after his 65th birthday
The politician and millionaire deleted his message and claimed that someone else wrote it after he criticized Putin's war with Ukraine.
The Vice Speaker of the Regional Parliament said on his Telegram channel that a colleague died. I convey my deepest sympathies to my relatives and friends.
The Russian press minister was found dead ofblunt force trauma to the head in a Washington, DC, hotel room.
Lesin was considering a deal with the FBI to protect himself from corruption charges before he died, according to The Daily Beast.
Lesin knew a lot about the inner workings of the rich and powerful when he was at the center of Russian politics.
Alexander Litvinenko drank a cup of tea at a London hotel and died three weeks later.
The British inquiry found that the poisoning of Litvinenko was ordered by Mr Patrushev and President Putin.
He accused Putin of blowing up an apartment block and ordering the murder of a journalist.
Anna Politkovskaya was a critic of Putin. She claimed in her book that Putin turned Russia into a police state. She was killed by contract killers in a lift outside her flat.
A judge found that five men were guilty of her murder, but that $150,000 was paid by a person unknown.
Natalia Estemirova was a journalist.
She discovered human rights abuses by the Russian state in Chechnya.
She was found in the woods with gunshot wounds to her head after she was kidnapped. Nobody has been found guilty of her murder.
Politkovskaya was represented by a human rights lawyer.
The man was shot by a masked person. The journalist was shot while trying to help him.
Boris Yeltsin, the former deputy prime minister of Russia, became a big critic of Putin, accusing him of being in the pay of the rich.
He was walking home from a restaurant when he was shot in the back. Despite Putin taking personal control of the investigation, the killer has not been located.
After falling out with Putin, Boris Bezansky fled to Britain. He made a threat to bring down Putin. An inquest into his death recorded an open verdict.
The man was found dead in a locked bathroom. The coroner didn't know how he died.
There were assassination attempts against him investigated by the British police.
Klebnikov edited the Russian edition of Forbes. He wrote about the lives of wealthy Russians.
He was shot to death in a drive-by shooting.
A Russian politician was trying to prove that the Russian state was behind the bombing of an apartment block.
His political organisation, Liberal Russia, had just been recognised by the Justice Ministry as a party when he was killed.