Britain sanctions 'Butcher of Mariupol' Russian general accused of massacring 300 civilians in theatre attack, the head of Russia Today and 12 more Kremlin allies as Liz Truss blasts Putin's 'torrent of lies' about invasion of Ukraine Colonel-General Mikhail Mizintsev ordered theatre strike that killed 300 civilians One of 14 people hit in the latest wave of UK's punitive economic measures Also ..