Former IRS agent gets life in prison for murder plot with au pair, judge calls it 'evil'
A northern Virginia man was sentenced to life in prison on June 5 for a meticulously planned double murder that prosecutors described as one of the most calculated and cruel cases they had ever encountered. Brendan Banfield, a former IRS law enforcement officer, was convicted in February 2026 on two counts of aggravated murder, along with firearm and child endangerment charges, for killing his wife Christine Banfield and a stranger named Joseph Ryan.
Judge Penney Azcarate, delivering the sentence in Fairfax County Circuit Court, called the crime 'evil' and said Banfield's actions involved 'manipulation and deception of the highest order.' She noted that Banfield had not only taken two lives but had also placed his 4-year-old daughter in the middle of the horror, leaving her orphaned and traumatized.
The case drew national attention for its chilling details: Banfield and the family’s live-in au pair, 25-year-old Juliana Peres Magalhaes of Brazil, with whom he was having an affair, hatched a scheme to lure Ryan to the Banfield home and frame him for Christine’s murder. They created a fake profile of Christine on a fetish website, messaging Ryan and inviting him to what he thought would be a consensual sexual encounter involving a 'rape fantasy' with a knife.
On Feb. 24, 2023, Ryan arrived at the home. According to prosecutors, Banfield and Magalhaes waited nearby, then left the couple’s daughter in the basement and went upstairs. Banfield shot Ryan in the head with his service weapon, and Magalhaes shot him in the chest with another gun. Banfield then stabbed his wife, a nurse at a pediatric intensive care unit, seven times in the throat with the knife that Ryan had brought. He altered the crime scene, moving Ryan’s body and smearing Christine’s blood on Ryan’s hands, before calling 911 with a fabricated story that Ryan had killed Christine.
Banfield maintained his innocence until sentencing, claiming he arrived home to find Ryan attacking his wife and acted in self-defense. In court, he denied stabbing Christine and denied 'catfishing' Ryan. 'She truly was a caring mother, a caring wife, a loving nurse. But I am not responsible for her death,' he said.
Judge Azcarate rebuked those statements, calling them 'almost unfathomable' and noting that Banfield had shown no remorse. 'Life in prison is a punishment reserved for a very small number of individuals, those whom the community has determined should never walk free again. It is a harsh sentence, but in this case, it is a justified one,' she said.
Fairfax County Commonwealth’s Attorney Steve Descano said after the hearing, 'He’s an evil guy. This was an evil crime, and he thought he was smart enough to get away with it, and he just wasn’t.'
Magalhaes pleaded guilty to manslaughter earlier and was sentenced to 10 years in prison. She will be deported to Brazil after serving her term. Legal analysts say the case underscores the dangers of digital manipulation and the vulnerabilities in the au pair program, which often leaves young foreign workers isolated and susceptible to exploitation.
The child, now 6, is living with extended family. Advocates for victims of domestic violence have pointed to the case as a stark reminder that financial and professional status do not shield families from deadly manipulation. The sentence effectively closes a case that shocked the quiet suburban community of Lorton, Virginia, and set a precedent for how courts handle complex conspiracy murders involving digital catfishing.