Why do Russian oil bosses keep dying?

Another prominent Russian businessman has died under mysterious circumstances after apparently falling from a window. This is the latest in a series of similar unexpected deaths among Russian energy executives.

Mikhail Rogachev, the former vice president of Yukos – once one of Russia's largest oil and gas companies – was found dead at the entrance to his Moscow home over the weekend. According to reports, he was discovered by an employee of the Russian foreign secret service SVR with injuries typical of a fall. The Russian state news agency said the 64-year-old, who lived on the 10th floor, died by suicide. Police are reportedly “investigating” a suicide note, The Times said.