Forensic Files

Inside The Banfield Trial: Au Pair Testifies

48 Hours

  • Jan 16, 2026
  • 23:16
  • Full Episode

Brendan Banfield is on trial for the murder of his wife Christine and another man, Joseph Ryan -- but it's the family au pair's role that has drawn attention in court this week as she testified against him. Juliana Peres Magalhães, who was romantically involved with Banfield, detailed an elaborate catfishing scheme meant to lure Ryan to the Banfield home and make it look like he stabbed Christine. Magalhães pleaded guilty to involuntary manslaughter in the murder of Joseph Ryan and is now cooperating with the government. In a special episode, 48 Hours correspondent Anne-Marie Green breaks down the latest developments in the trial with "48 Hours" producer Michelle Sigona.

Crime. Social justice. Impact. "48 Hours" investigates the most intriguing crime and justice cases that touch on all areas of the human experience including greed and passion. "48 Hours," which premiered in 1988, has developed a rich history of original reporting and impact journalism that has helped exonerate wrongly convicted people, caused cold cases to be reopened and solved, and along the way changed lives.

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Brief Summary

The episode covers the Brendan Banfield trial for his wife's murder and the role of his au pair in the events leading up to it.

Key points

  • Inside the Court Case of Brendan Banfield. Explore the shocking details of the trial involving Brendan Banfield, accused of murdering his wife and another man.
  • The Alleged Murder Plot. Brendan and his accomplice Juliana allegedly crafted a detailed plan to murder his wife.
  • Juliana's Transformation. Witness Juliana's dramatic change as she testifies against Brendan in court.
  • The 911 Call. Brendan's frantic call to 911 reveals the chaos following the shooting.
  • Juliana's Plea Deal. Juliana's decision to cooperate with authorities raises questions about her motives.
  • Trial Expectations. The trial is slated for four weeks, but its duration remains uncertain.

Tension

75/ 100High tension

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