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Brendan Banfield found guilty of killing wife, stranger, in 'au pair' double murder

Banfield conspired with the family's au pair to kill his wife and a stranger, using a fake fetish website profile to frame the stranger, jurors said after nearly nine hours of deliberation.

  • On Monday, a Fairfax County jury found Brendan Banfield guilty of murdering his wife and a stranger, deliberating nearly nine hours before the verdict.
  • Prosecutors say Banfield plotted the killings with the family's au pair during an affair so he could be with her, using Christine's laptop to create fake accounts that lured a stranger to the Herndon home.
  • On Feb. 24, 2023, Brendan shot Ryan in the head after finding him with Christine while their daughter was in the basement, prosecutors say.
  • Banfield's sentencing is set for May 8, and he faces a potential life sentence without parole, while Peres Magalh�es, who pleaded guilty to manslaughter, will receive time served for testifying.
  • Prosecutor Jenna Sands told jurors the killings were premeditated, saying `He left her in the basement, knowing that Joe Ryan was upstairs`; John Carroll disputed the catfishing theory and questioned digital-forensics evidence.
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abc 7 WJLA broke the news in Washington, United States on Monday, February 2, 2026.
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