Italian police have arrested a man who allegedly used a rat poison ingredient to kill members of his family because they were "impure".
He is accused of sprinkling the toxic chemical in the food of his paternal grandparents and aunt, who died.
Five other relatives are in hospital receiving treatment.
After his arrest, he confessed that he had wanted to "punish impure people".
His mother told investigators he had recently joined a cult.
Thallium, a soft metal, dissolves in water and is odorless and tasteless.
Source: BBC
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