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The au pair who pleaded guilty in connection with a double homicide in Northern Virginia described the gruesome killings for prosecutors in a video entered as evidence during a recent hearing in the case and provided to News4 by the defense counsel.

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Last year, prosecutors questioned Juliana Peres Magalhaes as part of her plea agreement. She alleged the man she was having an affair with — her employer Brendan Banfield — masterminded an elaborate plot to kill his wife, Christine.

Banfield denies the allegations. His attorney provided the video of Magalhaes’ interview to News4.

Banfield claims his wife invited another man, Joseph Ryan, to their bedroom to fulfill a BDSM sex fantasy the morning of Feb. 24,

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