Allison Guerriero, the woman who aided in turning in a former New York FBI counterintelligence chief accused of treason, has died under mysterious circumstances at her South Florida home.
Beginning in 2017, Guerriero allegedly engaged in an 18-month affair with Charles McGonigal, the former head of FBI counterintelligence who secretly conspired with Russian oligarch Oleg Deripaska. Guerriero played a key role in bringing down McGonigal, who was convicted in 2023 and is serving a six-and-a-half-year prison sentence.
Guerriero, now 52, died suddenly three years after McGonigal’s conviction. Police responded to her apartment at 1499 S. Federal Highway in Boynton Beach on Thursday evening but found no signs of foul play at this time. An autopsy is pending, and authorities are awaiting a death certificate before notifying family.
In the days leading to her passing, Guerriero shared alarming social media posts detailing her relationship with McGonigal and her allegations that he compromised classified information. One post read: “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.”
Other posts highlighted her claims that McGonigal and his network endangered American citizens and allies, stating: “McGonigal and the network of corrupt actors around him didn’t just compromise classified information; they jeopardized the safety of every American citizen and every one of our allies.” Guerriero also wrote that the FBI had “pushed the case ‘back to the Bureau,’ the very institution implicated in enabling him.”
Allison Guerriero was a devout Roman Catholic, cancer survivor, and endured severe injuries in a 2021 house fire. Her father, who lives in her former hometown of Florham Park, New Jersey, stated: “We really don’t know yet. We’re waiting to get access to the autopsy report.” Former security consultant Roger Stone, a longtime GOP operative and Trump advisor, added: “She would never take her own life. She was too devout a Roman Catholic.”
Both Guerriero’s father and Stone insist she did not commit suicide, though police have not yet confirmed the cause of death. The investigation into her passing remains ongoing.
