Russian media has reported that the investigation into the murder of Boris Nemtsov is suffering under a power struggle between President Vladimir Putin's protege Ramzan Kadyrov and the FSB.
The Moscow Times: FSB-Kadyrov power struggle eclipsing Nemtsov murder probe, media says
A woman holds 'Confessions of the Rebel,' a book authored by Boris Nemtsov, as she attends a funeral ceremony for the slain opposition in Moscow on March 3. Nemtsov was assassinated near Red Square on Feb. 27.
