Dateline examine the case of Brendan Banfield, the Virginiafather found guilty earlier this year of murdering his wife anda second victim in a case that captured global attention.Thebroadcast features never-before-seen footage of the family's aupair, Juliana Peres Magalhaes, speaking with police followingthe killings, prior to pleading guilty to charges related tothe case. Authorities later revealed she had been involved in arelationship with Banfield and colluded with him in themurders.
