Man who killed and decapitated his wife was suffering from cannabis-induced psychosis, court told
Both psychiatrists agreed Mr Costa Silva's psychosis was not due to acute intoxication from cannabis but a more persistent illness of cannabis-induced psychosis.
A man killed and decapitated his wife while suffering from a cannabis induced psychosis that led him to believe she was possessed by a serpent and was going to kill him, two consultant psychiatrists have told the Central Criminal Court.
