Nick Barreiro Testifies in Brendan Banfield Trial — The "Au Pair Affair Murder Trial"
True Crime Today | Daily True Crime News & Interviews
Tony Brueski
4.2 • 612 Ratings
🗓️ 23 January 2026
⏱️ 24 minutes
🧾️ Download transcript
Summary
Nick Barreiro, Audio/Video Forensic Analyst, took the stand in the murder trial of Brendan Banfield, the former IRS agent charged with four counts of aggravated murder in the deaths of his wife Christine Banfield and Joseph Ryan. Prosecutors allege Banfield and the family's au pair, Juliana Peres Magalhães, lured Ryan to their Herndon home through a fetish website and staged the killings as a home invasion.
The defense argues digital forensics contradict the catfishing theory and that investigators who disagreed were reassigned. Banfield faces life without parole if convicted. The four-week trial continues in Fairfax County.
#TrueCrimeToday #BrendanBanfield #AuPairAffair #MurderTrial #ChristineBanfield #JosephRyan #FairfaxCounty #JulianaMagalhaes #Justice #Breaking
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Transcript
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| 0:00.0 | You're listening to the Aupair Affair Murder Trial of Bratton Vanfield from True |
| 0:05.0 | Crying Today on the Hidden Killers podcast. |
| 0:08.0 | Now, back to the courtroom. |
| 0:10.0 | All right. |
| 0:12.0 | Afternoon, ladies and gentlemen, what we're going to do is we're going to, we're going to, |
| 0:16.0 | sometimes things happen in trials, we need to switch things up a little bit and take things out of turn. So what we're going to do now is we're going to come back to the last expert that you had |
| 0:25.6 | the next time we meet, okay? |
| 0:27.6 | And we'll come back to his direct testimony and we'll go through the rest of his testimony at that time. |
| 0:31.6 | This, we have, what we have now is a remote witnesses that has been waiting all day, |
| 0:35.6 | and he's in an area that is going to be impacted out of state with the weather. So I wanted to make sure we got him today. Not that I'm hoping he doesn't lose electricity anytime in the next few days, but we just want to make sure we got him in for you. So we're just going to take him out of turn. Okay? All right. So you want to call your next witness? |
| 0:55.0 | Yes, Your Honor. I'd call Nick Barrero. |
| 0:58.0 | All right. Mr. Barrero, if you could raise your right hand for me. |
| 1:01.0 | Do you swear for him to tell the truth on a penalty of law? |
| 1:04.0 | I do. |
| 1:06.0 | Mr. Barrero, can you hear me? This is John Carroll. |
| 1:19.8 | Yes, sir, I can. Okay. Sir, can you state your name spelling it for the court reporter that we have here? |
| 1:30.1 | Yeah, sure. It's Nick Barrero, N-I-C-K. Last is B-A-R-R-E-I-R-O. |
| 1:36.5 | And, sir, what is your area of discipline as an expert? |
| 1:40.8 | I'm an audio, video, forensic analyst. |
| 1:48.1 | And can you give the ladies and gentlemen the jury an idea of your background that allows you to become an audio-visual analyst? |
| 1:50.8 | Sure. |
| 1:51.8 | I spent 15 years in law enforcement in California before founding my own media forensics firm. |
... |
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