Brendan Banfield was sentenced to life in prison without the possibility of parole on Friday for his role in a calculated double murder scheme in Virginia. The 40-year-old former IRS agent was convicted in February on two counts of aggravated murder, one count of using a firearm in the commission of a felony, and child endangerment regarding the 2023 deaths of his wife, Christine Banfield, and a stranger named Joseph Ryan.
According to NBC News, Prosecutors established that Banfield, along with the family’s au pair, Juliana Peres Magalhaes, orchestrated a plot to kill Christine Banfield on February 24th, 2023. NBC noted that the pair created a fake user profile on a fetish website under the name Annastasia9. They used this profile to lure Joseph Ryan, a 39-year-old man from Springfield, to the Banfield home under the guise of a violent sexual fantasy encounter.
On the morning of the killings, Peres Magalhaes reportedly waited in a car outside the house with Banfield’s 4-year-old daughter. Once Ryan arrived, Peres Magalhaes testified that they brought the child to the basement before heading to the bedroom where Ryan was waiting. She stated that Banfield shot Ryan and then used the knife Ryan had brought to the home to stab his wife, Christine. When Magalhaes noticed Ryan was still moving, she stated she fired a second shot that ultimately killed him.
Per reports, Banfield wanted to avoid a divorce
The Fairfax County Police Department records indicate that the initial response to the home occurred just after 8:00 AM on February 24, 2023. Officers arrived to find Christine Banfield suffering from stab wounds and Joseph Ryan with gunshot wounds. While Banfield and the au pair initially called 911 to report an intruder, the subsequent investigation by homicide detectives and the Cyber and Forensics Bureau dismantled their story.
Per FOX 4, Peres Magalhaes was having an affair with Banfield. She eventually pleaded guilty to manslaughter and received a 10-year prison sentence after cooperating with authorities and testifying for the prosecution. She reportedly testified that Banfield wanted to marry her and have children, but refused to get a divorce because he wanted to keep custody of his daughter and maintain his financial standing. They reportedly planned the murder to avoid a divorce.
During the trial, Banfield attempted to deny these allegations, labeling them as “absolutely crazy.” He claimed that he shot Ryan only after finding him in the act of attacking his wife. He testified that he was armed with his service weapon. “I did not want to shoot him,” said Banfield, “Um, I wanted him to let her go.” However, the jury rejected this version of events, finding him guilty on all counts.
Judge Penney Azcarate reportedly told Banfield that his actions were rooted in something far worse than simple impulse. “The level of cruelty, calculation, and inhumanity in this case reflects something far deeper than anger or impulse; it reflects evil, which is why I carry no burden and find no hesitation in sentencing you to life,” she stated. The judge also noted that Banfield took everything from the child without a single thought for her future.
Per NBC, Christine Banfield’s sister, Danielle, spoke directly to the defendant, telling him that his daughter would eventually understand that he put her in harm’s way. She stated, “He could have divorced and moved on, but divorce would have required relinquishing control, and control was always the priority. His actions were not driven by love, but a desire for power, deception, and a complete disregard for the lies he destroyed.”
Joseph Ryan’s mother, Deirdre Fisher, who attended the hearing virtually, stated that “Brendan will remain known as an abusive father, the brutal murderer of his dedicated and compassionate, beautiful wife, and a narcissistic killer of an innocent man.” Before his sentence was finalized, Banfield spoke for roughly 10 minutes to express his disappointment in the legal system.
“I was found guilty of a crime that I did not commit. It is actually impossible to have committed the crime, as the prosecution, their experts, and their witnesses have presented.” Despite the overwhelming evidence regarding his affair and the setup, he claimed that his marriage was unconventional but worked for them. “I loved her very much. Despite what you may think of my affairs, our marriage worked for us. It wasn’t something that I looked to end.”
Banfield now has 30 days to file an appeal if he chooses to do so. This is a case where an alleged fake tryst led to murder; however, last year, a Tennessee man allegedly committed murder after catching his wife with a teen.
Published: Jun 8, 2026 02:00 pm