An ice-cream seller nicknamed the 'Ice Woman' murdered her husband and lover and cut them up, hiding their remains in concrete.
An Austrian court was told yesterday that the bodies were concealed beneath the concrete floor of her parlour.
Goidsargi Estibaliz Carranza Zabala, who has both Spanish and Mexican citizenship, appeared in a Viennese court amid a sea of publicity surrounding the grisly murders.
Prosecutors allege that in 2008 the woman shot her husband three times in the head and then dissected his remains with a chainsaw. She apparently stored her husband's body parts in a freezer for a few months before putting them in the floor of her Vienna shop.
Two years later, it is claimed, she took the pistol to her lover as he slept after she found out that he had been seeing another woman. He also ended up in bits in the floor of the ice-cream parlour.
The body parts were found by accident by builders during renovation work in 2011. Carranza went on the run despite being two months pregnant but was captured in Italy and extradited.
Psychiatrist Adelheid Kastner, who once examined Josef Fritzl, deemed Carranza fit for trial despite mental problems.
Defence lawyer Werner Tomanek said Carranza "intends to confess" in court.