The alleged mistress of the ex-FBI special agent who investigated Trump-Russia collusion was found dead in her Florida home, her family said on Facebook.
Allison Guerriero, 52, was found dead in her Boynton Beach, Florida, home last Thursday evening after firing off a flurry of mysterious X posts.
“I turned in two time convicted traitor, former head of Counterintelligence for FBI, Charles McGonigal. I’ve been sick with illnesses and injuries for 8 years,” Guerriero’s X bio reads.
Guerriero posted 75 X posts last Thursday before she was found dead in her home later that night.
The FBI is evil. https://t.co/r9L2Ct1qhM
— Allison Guerriero (@AllisonGuerrier) August 27, 2026
AS A MATTER OF PUBLIC CONCERN – Anyone who ever witnessed Charles McGonigal and me together should NOT hop into the comments because I never told anyone what I suspected because I was attempting not to fuck over the people who were loyal to me and helped me. Don’t create a…
— Allison Guerriero (@AllisonGuerrier) August 27, 2026
Allison Guerriero posted this last video to social media just hours before she passed away:
Now THIS the exhale after praying rosaries every day, Saint Jude Novena’s, embarrassing myself, and humiliating myself on social media, so people will pay attention to me, and somebody will start paying attention to all the names you do not know and never heard regarding the… pic.twitter.com/4wUeFRPwMM
— Allison Guerriero (@AllisonGuerrier) August 27, 2026
According to The Daily Mail, Guerriero’s father said the circumstances surrounding his daughter’s death are still a mystery.
“We really don’t know yet. We’re waiting to get access to the autopsy report. I believe they’re going to issue a death certificate within the next day so we can get her home and have her put to rest,” William Guerriero told The Daily Mail.
“It could have been an accident. She could have slipped. It could have been anything. We’re waiting for the death certificate so we know what happened,” he said.
Boynton Beach police do not believe foul play was involved.
The Daily Mail reported:
The mistress who helped bring down jailed FBI spy Charles McGonigal has died suddenly at her home in South Florida, the Daily Mail can reveal.
Allison Guerriero, 52, passed away hours after sharing a flurry of 75 posts on X on Thursday, including a video of herself walking in the street demanding a spotlight on other Feds and another where she declared: ‘I hate the FBI.’
They were part of her unrelenting years-long campaign, often conducted on social media, against married McGonigal, 58, and her personal war against other senior figures in the agency.
Guerriero, a close friend of former New York City mayor and Trump stalwart Rudy Giuliani, died sometime in the evening of August 27, according to her devastated 80-year-old father Bill.
Her 18-month affair with McGonigal, the treacherous former head of the FBI counterintelligence in New York, helped blow the lid on his crimes, which included secretly working for Russian oligarch Oleg Deripaska.
He is serving six years and six months in federal prison, but Guerriero always believed he should have received a harsher sentence, telling the Daily Mail in 2024: ‘He’s a traitor.’
Mistress who turned in treacherous FBI spy Charles McGonigal is mysteriously found DEAD: Her haunting final texts revealed… as grieving dad insists she ‘would never’ take her own life https://t.co/TJnu3jBrf0
— Daily Mail US (@Daily_MailUS) August 31, 2026
The Daily Mail also previously reported on Allison Guerriero’s relationship with Charles McGonigal.
Allison Guerriero discussed her relationship with McGonigal in an interview with the Daily Mail.
WATCH:
Longtime political operative and Trump advisor Roger Stone was friends with Allison Guerriero.
.@AllisonGuerrier a valued colleague, Patriot and Friend has passed. https://t.co/3J0xft3sXH
— Roger Stone (@RogerJStoneJr) August 31, 2026
In December 2023, ex-FBI Special Agent Charles McGonigal pleaded guilty to conspiring with a Russian oligarch and was sentenced to four years in prison.
In 2023, former Special Agent in charge of counter-intelligence in the New York field office, Charles McGonigal, was arrested for conspiring with Oleg Deripaska, a sanctioned Russian Oligarch.
Charles McGonigal was hit with a five-count indictment and charged with “violating and conspiring to violate the International Emergency Economic Powers Act (“IEEPA”) and with conspiring to commit money laundering and money laundering.”
Mr. McGonigal retired in 2018, according to the DOJ’s press release.
While working at the FBI, he “supervised and participated in investigations of Russian oligarchs, including Deripaska.”
Per the DOJ: U.S. Attorney Damian Williams said: “As alleged, Charles McGonigal, a former high-level FBI official, and Sergey Shestakov, a Court interpreter, violated U.S. sanctions by agreeing to provide services to Oleg Deripaska, a sanctioned Russian oligarch. They both previously worked with Deripaska to attempt to have his sanctions removed, and, as public servants, they should have known better. This Office will continue to prosecute those who violate U.S. sanctions enacted in response to Russian belligerence in Ukraine in order to line their own pockets.”
“As alleged, Mr. McGonigal and Mr. Shestakov, both U.S. citizens, acted on behalf of Deripaska and fraudulently used a U.S. entity to obscure their activity in violation of U.S. sanctions. After sanctions are imposed, they must be enforced equally against all U.S. citizens in order to be successful. There are no exceptions for anyone, including a former FBI official like Mr. McGonigal. Supporting a designated threat to the United States and our allies is a crime the FBI will continue to pursue aggressively.” the DOJ previously said.
The DOJ alleges that both McGonigal and Shestakov knew that their actions violated US sanctions because McGonigal received classified information that Deripaska would be added to a list of Russian oligarchs to be sanctioned.
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