Phoenix man pleads guilty in wife's death

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PHOENIX -- A man facing trial in the murder of his wife pleaded guilty to manslaughter on Tuesday.

Primitivo Madrigal Almonte told investigators he shot his wife because she was "trying to poison him."

The shooting happened near 43rd Avenue and Van Buren Street in April 2009.

Almonte was found with blood stains on his shirt. His wife's body and shell casings were found inside the family car.

Police said Almonte is mentally disturbed and has a history of domestic violence.