Allison Guerriero, the former mistress of jailed FBI spy Charles McGonigal, expressed concerns about potential Russian reprisals in text messages before her sudden death in south Florida. Police have blocked the release of records related to her passing, citing an ongoing criminal investigation.
Guerriero, 52, died suddenly on Thursday evening, with no cause of death publicly disclosed. Her father, Bill Guerriero, confirmed her death and stated that the family is awaiting an autopsy report. Boynton Beach police responded to Guerriero's apartment around 8 p.m. on Thursday, August 27. While police noted that there did not appear to be signs of foul play at the time, an investigation is ongoing.
In texts with independent researcher Anthony Gonzales, who posts as Anthony Andrews, Guerriero acknowledged fears of repercussions after her role in exposing McGonigal's crimes. McGonigal, former special agent in charge of the FBI's counterintelligence division in New York, is currently serving a 6.5-year prison sentence for secretly working for Russian oligarch Oleg Deripaska.
"As if I don't have the same concerns?" Guerriero texted, according to the Daily Mail. "I turned in a traitor working for the Russians. They don't scare me. If they wanted me dead I'd be dead five or six years ago." She also mentioned concerns about surveillance from various countries due to past contract work.
Her death occurred hours after she posted a flurry of messages on X, including a video demanding scrutiny of other federal agents and a declaration, "I hate the FBI." These posts were part of her prolonged campaign against McGonigal and other senior FBI figures.
Security consultant Jackie Singh published a critical article about Guerriero on her website, "Hacking, but Legal," the day before Guerriero's death. Singh told the Daily Mail that while the timing of the article raises questions, she does not suspect foul play, suggesting Guerriero may have taken her own life. Guerriero had messaged Singh on the day she died, with one message reading, "I don't wanna wreck your life like they did to me."
Singh's article detailed Guerriero's connections to various individuals, including Mar-a-Lago and former National Security Advisor Mike Flynn. Guerriero, who had worked as a researcher and investigator for Guidepost Solutions for eight years, was also assisting conservative lobbyist and Trump ally Roger Stone with research at the time of her death.
Roger Stone described Guerriero as a "brilliant researcher and writer" and stated that she seemed in excellent spirits on the day she passed away. He expressed disbelief at the notion of suicide, citing her strong Roman Catholic faith and her resilience in overcoming health issues, including cancer and severe injuries from a fire. Stone also noted Guerriero's persistent frustration that McGonigal was not charged with treason.
While police state no foul play is immediately apparent, the withholding of records under Florida statute for an active criminal investigation indicates the circumstances are being closely examined. Guerriero's father, however, expressed skepticism about foul play, stating his daughter seemed happy and healthy in Florida.
Guerriero's relationship with McGonigal began in 2017. She provided detailed accounts to the Daily Mail about their affair, McGonigal's alleged corruption, and her discovery of $80,000 in cash in their shared apartment. Her suspicions led her to report McGonigal to the FBI in 2019, though she felt her concerns were initially ignored.
A funeral mass for Guerriero is scheduled for September 4 at St. Vincent Martyr Church in Madison, New Jersey. Her death certificate has not yet been released by the Florida Department of Health.