FAIRFAX, VIRGINIA — Opening statements are expected to begin Tuesday in the trial of a Virginia man accused of killing his wife and another man while carrying on a romantic relationship with a Brazilian au pair.
Brendan Banfield is charged Aggravated murder In the February 2023 murders of Christine Banfield and Joseph Ryan at the Banfields’ home in Northern Virginia. He has pleaded not guilty and faces life in prison.
Brendan Banfield and Juliana Perez Magalhaes, the family’s babysitter, initially told investigators they shot Ryan after they found the stranger stabbing Christine Banfield in the bedroom. Prosecutors say Banfield and Magalhaes lured Ryan to the home and staged it to look like they shot an intruder. The two had started a romantic relationship about a year ago.
Both were initially arrested and charged with murder. In 2024, Magalhaes He pleaded guilty to the lesser charge of manslaughter After cooperating with investigators.
Magalhaes told them that she and Brendan Banfield had set up an account in his wife’s name on a social media platform for people interested in sexual intercourse with girls. Ryan contacted the account, planning to meet on the morning of February 24, 2023, for a sexual encounter involving a knife.
Not all officials investigating the case believed Banfield and Magalhaes lured Ryan to the house.
Brendan Miller, a former digital forensics examiner for the Fairfax County Police Department, testified last year that he analyzed dozens of devices and concluded that Christine Banfield was in contact with Ryan herself. An evidence analysis team at the University of Alabama peer-reviewed and confirmed Miller’s digital forensic findings, according to evidence presented to the court.
It was Miller Transfer from The department’s digital forensics unit in late 2024, although a former Fairfax County commander testified that the reassignment was not punitive.
John Carroll, Banfield’s attorney, argued that Miller’s transfer was directly related to his work on the case. Carroll also noted in court that Fairfax County police reassigned the lead investigator in the case after that man recanted the catfishing theory.
“It’s a theory that looks for facts, not a series of facts that support the theory,” Carroll said.
Banfield, whose then-4-year-old daughter was at the home the morning of the killings, is also charged with murder. Child abuse and felony cruelty to children Regarding the case. He will also face these charges during his aggravated murder trial.