FAIRFAX, Va. — A former IRS law enforcement officer from Virginia will learn his fate Friday when he receives sentencing for orchestrating the deaths of his wife and an innocent victim who was deceived into coming to their residence.
Brendan Banfield had maintained that he fatally shot Joseph Ryan after discovering Ryan assaulting his wife on the morning of Feb. 24, 2023. However, prosecutors demonstrated that Banfield worked alongside au pair Juliana Peres Magalhães to orchestrate Ryan’s deception as part of an elaborate plot to eliminate Christine Banfield, who worked as a pediatric intensive care nurse.
The defendant is facing a potential life sentence. Beyond the murder charges, a jury in February also found Banfield guilty of endangering a child since the couple’s 4-year-old daughter was present in the home when the killings occurred.
Throughout the proceedings, Magalhães provided testimony revealing that Banfield had expressed his desire to wed her and start a family together, but explained he needed to “get rid of” his wife beforehand. According to Magalhães, who began employment with the family in 2021 at age 21, he rejected the idea of divorce proceedings because “she would have more money than he would” and due to his desire to maintain custody of their daughter.
The au pair informed jurors that she and Brendan Banfield created a false identity using Christine Banfield’s information on a website dedicated to sexual fetishes. They utilized this platform to deceive Ryan into visiting their Herndon, Virginia residence under the pretense of a sexual encounter involving a knife, then arranged the scene to appear as though they had defended themselves against a dangerous intruder.
According to Magalhães’ testimony, on the day the murders took place, she remained outside the residence in a vehicle with the couple’s child. Upon Ryan’s arrival, she contacted Brendan Banfield, who had positioned himself at a nearby McDonald’s restaurant. The two brought the child downstairs before proceeding to the bedroom where they confronted Ryan. Brendan Banfield shot Ryan, then used the knife Ryan had brought to stab Christine Banfield. When Magalhães observed Ryan still moving, she fired an additional shot that resulted in his death.
Following her agreement to provide testimony against Brendan Banfield, Magalhães entered a guilty plea to manslaughter charges. She received a 10-year prison sentence after Banfield’s trial concluded.
