A 54-year-old man has been committed indefinitely to a psychiatric hospital for killing his partner and her father in a knife attack after believing that they had turned into "replicas".
Achilleas Costa, of no fixed address, stabbed Fernanda Assis, 31, and Joanilson Souza De Assis, 61, to death in Wood Green, north London, on November 27, 2021.
