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After killing his mother Miryam Kowalczuk, 50 and stepfather Richard Klein, sick Leandro Acosta chopped up their bodies and ate some of their remains before feeding the rest to the family's six dog.

The 25-year-old claims his stepsister Karen Klein - who is also his lover - helped dispose of the bodies.

According to Acosta's lawyer, he carried out the sick crime because his stepfather had abused him and his 11-year-old siblings.

Acosta and Klein have defended their actions saying that although the abuse they experienced was in the past, they discovered to their horror that the dead couple had been abusing the two children they had together - 11-year-old twins.