Knifeman murdered ex in row about childcare payments

  A killer who stabbed his ex-partner to death in the street after an argument about childcare payments is facing a life sentence. Mark Morris, 39, plunged a kitchen knife into Emma Day’s back after a 25 minute argument on Eylewood Road, West Norwood, south London, just after 7pm on 25 May. The 33-year-old mother-of-two died at the scene after the blade punctured her heart. Morris, who was in a relationship with Emma from 2008 until last year, confronted Ms…