Double killer stabbed girlfriend and her dad to death

A double killer is facing years behind bars for stabbing his partner and her father to death in a ‘ferocious’ knife attack. Achilleas Costa, 53, admitted killing Fernanda Assis, 31, and her dad Joanilson Souza De Assis, 61, at their home in Mayes Road, Wood Green, north London, on 28 November 2021. Costa appeared at the Old Bailey wearing a white shirt and blue jeans as he denied two charges of murder but admitted two charges of manslaughter. Prosecutor Bill…