People follow the coffin of Russian opposition leader Boris Nemtsov during a farewell ceremony in Moscow on Tuesday, March 3. Nemtsov, a vocal opponent of Russian President Vladimir Putin's, was gunned down hundreds of feet away from the Kremlin on Friday, February 27. The assassination has spawned a flood of conspiracy theories; many suspect the Kremlin of either direct or indirect involvement. Putin condemned the killing and ordered three law enforcement agencies to investigate, the Kremlin said.
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Dina Eidman, the mother of Nemtsov, left, and other relatives pay their last respects in Moscow on March 3.
Pavel Golovkin/AP
People pay tribute to Nemtsov on Monday, March 2, at the scene of the opposition leader's shooting in Moscow.
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People march in memory of Nemtsov in Moscow on Sunday, March 1.
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A woman carries a sign with Nemtsov's image during a march in St. Petersburg, Russia, on March 1.
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A woman leaves flowers in Nemtsov's memory during a march in central Moscow on March 1.
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People march near the Kremlin in Moscow on March 1.
Dmitry Lovetsky/AP
Watched by police in boats on the Moskva River, crowds march across a bridge in Moscow on March 1.
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People gather to honor Nemtsov during a ceremony at Maidan, or Independence, Square in Kiev, Ukraine, on March 1.
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A woman places a candle at a makeshift memorial in front of the Russian Embassy in Vilnius, Lithuania, on March 1.
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People gather at Innocent Plaza in Paris on March 1 to remember Nemtsov.
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A man carries a sign with Nemtsov's image March 1 in Moscow.
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Marchers gather in central Moscow on March 1.
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People march near the Kremlin in Moscow on March 1.
Dmitry Lovetsky/AP
People light candles at a monument dedicated to political prisoners in St. Petersburg on Saturday, February 28.
Dmitry Lovetsky/AP
A group of European Union ambassadors to Russia lay flowers on February 28 at the site where Nemtsov was gunned down in Moscow.