article_snippet: Putin has vowed to bring those responsible to justice.
article_snippet: It's on Putin's conscience.
article_snippet: would've been able to do it with such precision in the heart of Moscow.
article_snippet: My wish was not to cause any danger to Russia.
article_snippet: Putin condemned the killing and ordered three law enforcement agencies to investigate the killing, the Kremlin said.
article_snippet: Russia's Investigative Committee is offering a reward of 3 million rubles ($49,000) for information leading to the arrest of the killer.
article_snippet: Russia's Investigative Committee said the tipster will be guaranteed anonymity.