A Russian court has jailed five men convicted of the killing of Russian opposition leader Boris Nemtsov in 2015. Zaur Dadayev was sentenced to 20 years in prison. Four others found guilty of involvement in the killing were sentenced to terms ranging from 11 to 19 years.
Nemtsov, a leading opponent of President Vladimir Putin, was gunned down on a bridge near the Kremlin. The man convicted of killing him was a former officer in the security forces in Chechnya, a republic of Russia situated in the southernmost part of Eastern Europe. Nemtsov's allies have criticized investigators for not studying a possible role of the Chechen President Ramzan Kadyrov.