A high-ranking Russian law official believed to be the authority behind attorney Natalia Veselnitskaya, who took part in the notorious Trump Tower meeting with Donald Trump Jr during the presidential campaign, has been killed in a mysterious helicopter crash. Deputy prosecutor-general Saak Karapetyan - a long-time ally of President Vladimir Putin - died last night when his AS-350 came down in Kostroma region northeast of Moscow during an unauthorized flight. Karapetyan had been in charge of Russian criminal investigations into the poisoning of former spy Sergei Skripal and his daughter Yulia in the UK, and the deaths of Putin critic...