Double killer made psychotic by cannabis found praying outside Wetherspoons

A double killer found on his knees outside a pub told police a demonic pact required him to worship at Wetherspoons after he stabbed his partner and her father to death. Achilleas Costa, 54, killed Fernanda Assis, 31, and her father Joanilson Souza de Assis, 61, at their home in Mayes Road, Wood Green, north London, on 28 November 2021, the Old Bailey heard. Costa was made psychotic by smoking large amounts of cannabis and believed his partner was a…