article_snippet: Russian opposition leader Boris Nemtsov sister confirmed that Russian opposition leader Boris Nemtsov had won medals for bravery and courage.
article_snippet: It was not clear if either of the men were believed to have fired the shots that killed Mr Nemtsov.
article_snippet: Nemtsov (left) and Mr Nemtsov 23-year-old model girlfriend, Anna Duritskaya (right), were walking through Moscow when Mr Nemtsov was shot four times in the back .
article_snippet: At the time of Boris Nemtsov's death
article_snippet: Boris Nemtsov's had been working on a report about Russian military involvement in the eastern Ukraine conflict.
article_snippet: Boris Nemtsov's was also in the midst of organising a march against the war and had written a number of reports in recent years linking Putin and other politicians to alleged corruption.
article_snippet: The shooting occurred a few hours after Boris Nemtsov's had made a radio appearance denouncing Putin for 'mad, aggressive' policies in Ukraine.
article_snippet: Russian officials have denied any involvement, with Putin dubbing the murder a 'provocation'.
article_snippet: Putin had been organising a march in opposition to the Ukraine conflict at the time of Putin death . '
article_snippet: I mean the murder, the audacious murder of Boris Nemtsov right in the centre of the capital.'
highlights_snippet: Appearances come a week after 55-year-old was shot four times in the back while walking near the Kremlin .
  