Russian billionaire Abramovich funded Putin's former teacher's apartment purchase.

Financial records reveal that the money for an apartment purchased for Russian President Vladimir Putin's former teacher, Mina Yuditskaya-Berliner, did not come from Putin, but from an offshore account secretly controlled by Russian billionaire Roman Abramovich. The transaction highlights the system of patronage and hidden wealth in Russia, where oligarchs like Abramovich know what is expected of them and play along. Abramovich has long denied any financial linkage to Putin, but the documents obtained by The Washington Post and the International Consortium of Investigative Journalists suggest otherwise.