Diane Abbott, 67, accused of inflaming racial divides over activist attack tweet
Labour MP had linked shooting of Sasha Johnson to her Black Lives Matter work
But an earlier Met Police statement on attack refuted links to her prior activism
LBC host Iain Dale challenged Hackney North and Stoke Newington MP s claims
Self-styled Black Panther of Oxford , 27, is fighting for her life after the suspected gang attack in Peckham, south-east London on Sunday morning
Scotland Yard confirmed there is no suggestion of targeted attack at this time