Au Pair Affair Trial Of Brendan Banfield: LeeAnn Singley Takes The Stand — Scientist Provides Opposing Views of Blood Stains at Crime Scene
Hidden Killers With Tony Brueski | True Crime News & Commentary
True Crime Today
3.3 • 907 Ratings
🗓️ 21 January 2026
⏱️ 42 minutes
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Summary
LeeAnn Singley, Forensic Scientist, testified today in the Brendan Banfield murder trial. Banfield, a former IRS agent, is charged with four counts of aggravated murder in the February 2023 deaths of his wife Christine Banfield and Joseph Ryan at their Herndon, Virginia home.
Prosecutors allege Banfield plotted the killings with the family's Brazilian au pair, Juliana Peres Magalhães, with whom he was having an affair. Magalhães has pleaded guilty to manslaughter and is expected to testify against Banfield. The defense maintains digital evidence does not support the state's catfishing theory.
#BrendanBanfield #AuPairAffair #MurderTrial #TrueCrime #Testimony #ChristineBanfield #JosephRyan #FairfaxCounty #HiddenKillers #Breaking
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Transcript
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| 0:00.0 | You're listening to the Aupair Affair Murder Trial of Branton Vanfield from True Crime today in the Hidden Killers podcast. |
| 0:08.0 | Now, back to the courtroom. |
| 0:12.6 | Ma'am, can you please state your name, spelling your name for the court reporter? |
| 0:17.1 | Sure. My name is Leanne Singley. First name is L-E-E,E-A-N-N. Last name is Singley, S-I-N-G-L-E-Y. |
| 0:27.9 | And what is your particular professional discipline? I'm a forensic scientist. |
| 0:34.8 | Okay. And what areas of forensic science do you specialize in? |
| 0:39.3 | So currently, I work mostly in bloodstain pattern analysis. |
| 0:43.4 | Okay. |
| 0:44.4 | And can you tell the ladies and gentlemen |
| 0:46.2 | of the jury about your background |
| 0:49.2 | and your training in bloodstain pattern analysis? |
| 0:52.9 | Sure. |
| 0:53.8 | I guess I'll start with my educational background. |
| 0:56.0 | I have a bachelor's degree in biology and a minor in chemistry from the University of Pittsburgh. |
| 1:01.0 | I also received a master's degree with a concentration in forensic science from the University of Florida. |
| 1:07.0 | In 1987, I was hired as a forensic scientist in the Pennsylvania State Police Crime Laboratory, |
| 1:13.9 | so I'll be, I'm just entering now my 39th year in forensics. |
| 1:18.5 | I spent about 17 years at the State Police Crime Lab and received some training regarding various areas of forensics, |
| 1:26.4 | but in specific to bloodstain |
| 1:28.0 | pattern analysis I started by education in that in 1993 afterwards I've had a |
| 1:34.6 | basic and advanced training I've had training in the math and physics of |
| 1:38.5 | bloodstain pattern analysis fluid dynamics of bloodstain pattern analysis the |
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