Au pair who had affair with Brendan Banfield describes alleged murder scheme

Former au pair Juliana Peres Magalhães testified in the double murder trial of Brendan Banfield, with whom she had an extramarital affair, saying Banfield began hatching his plan to kill his wife Christine not long after their affair began. CNN’s Jean Casarez reports on the graphic allegations Magalhães described in court of the murders of Banfield’s wife and another man.