In this photo taken on Wednesday, Feb. 25, 2015, fighters of a Chechen battalion fighting against Russia-backed rebels, reload in the town of Lysychansk, Ukraine. Russian pro-Kremlin newspapers published reports based on unidentified sources in the security services that accused the Ukrainian government and Osmayev of ordering the murder of Russian opposition leader Boris Nemtsov, the claims Osmayev has denied. (AP Photo/Olya Engalycheva)
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