IRS agent Brendan Banfield claimed he shot a stranger to save his wife Christine from being stabbed, but investigators uncovered a diabolical catfishing scheme: Banfield and au pair Juliana plotted Christine's murder by luring stranger Joe Ryan to their home using fake profiles. Andrea Canning and Blayne Alexander discuss one of Dateline's most twisted cases. Brendan Banfield and au pair Juliana orchestrated an elaborate catfishing scheme on a fetish website to frame Joe Ryan for Christine's murder, planning the crime with meticulous detail including disabling her phone and staging a sexual encounter. Juliana remained emotionally detached and silent in jail for months, even writing love letters to Banfield, never showing remorse during her testimony despite her critical role in the plot.