In 1998, human rights advocate Galina Starovoitova was shot dead in St. Petersburg at the entrance of her apartment. In 2003, Yuri Schekochikhin mysteriously died from illness, causing speculation into his death, such as poisoning. In 2003, the liberal politician Sergei Yushenkov was shot dead. In 2006, Alexander Litvinenko was poisoned with polonium and died. A British inquiry concluded that President Putin had "probably" approved his murder. In 2006, investigative journalist Anna Politkovskaya was shot dead. In 2009, human rights advocate Stanislav Markelov and journalist Anastasia Baburova were shot dead in Moscow. In 2015, opposition politician Boris Nemtsov was shot dead near the Kremlin. In 2017, journalist Nikolay Andrushchenko was beaten to death.