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A killer who confessed to murdering 20 women in Mexico has told that he fed their hearts to dogs.
Leaked footage of Juan Carlos sitting in a police station while in handcuffs and confessing to his crimes has emerged.
He admitted to slitting the throats of his victims before having sex with their corpses - and even feeding their hearts to his pet dogs .
His wife, Patricia, has also told police her job was to trick his victims into accompanying her to their "House of Horrors" after luring them with cheap clothes to sell, say prosecutors.
Many of his victims were young mothers, and the couple have admitted to selling a two-month-old baby, after killing its mother.
The husband and wife team were later arrested pushing the tot's pram, but instead of finding the baby the found body parts.
Juan Carlos has also reportedly told a police doctor that he will kill again if he is freed.