Major development in ‘Christmas cake poisoning’ that left three relatives dead

Paolo Luiz, 68, died last September, months before the suspected triple murder (Picture: Aisling Legros)

The body of a man exhumed after his two sisters-in-law and a niece died having eaten a Christmas cake laced with arsenic also had traces of the poison in his system.

Paolo Luiz, 68, died last September, months before the suspected triple murder, after eating contaminated bananas.

The case made headlines around the world when relatives Tatiana Denize Silva dos Anjos, 43, Maida Berenice Flores da Silva...