Brendan Banfield, a former IRS law enforcement officer, was sentenced to life without parole for murdering his wife Christine Banfield, a pediatric intensive care nurse, and Joseph Ryan, a man the couple lured to their home to serve as a fall guy. Banfield and the family's Brazilian au pair, Juliana Peres Magalhães, orchestrated the scheme; Banfield claimed he shot Ryan in self-defense, but prosecutors proved it was premeditated.