A man sent to a secure hospital for killing a mother of two told doctors he had to sacrifice her to save his own family, a court has heard. Marcin Porczynski admitted stabbing Nicola Cross, 37, to death in September 2015 in Hemel Hempstead. Mrs Cross’s husband Danny had told St Albans Crown Court he heard his wife’s screams over the phone as Porczynski broke into their home and attacked her...