Since the killing of Russian opposition leader Boris Nemtsov, theories have arisen about possible perpetrators and motives, leading to speculation that Chechen President Ramzan Kadyrov might have been involved . Much of that speculation stems from the identities of the perpetrators arrested by Russia's Federal Security Service, or FSB, which seem to indicate that the state security agency wants Kadyrov gone. In the midst of this, however, Putin has rewarded the Chechen leader with a medal of honor, solidifying his support for Kadyrov and possibly taking a stance against the FSB. Nemtsov was shot in the back four times on a bridge next to the Kremlin on Feb. 27, two days before he was set to participate in a rally protesting the Russian government.