Adriana Ross, Sarah Kellen Vickers, Lesley Groff, and Nadia Marcinkova were four of the women long described in court filings, survivor testimony, and investigative reporting as central figures within Jeffrey Epstein’s inner orbit—often referred to as his “core four.” Each played a different role in the machinery that enabled Epstein’s trafficking operation to function across multiple properties and jurisdictions. Ross, a former model from Poland, was accused in depositions of helping arrange encounters and recruit new girls inside the Palm Beach network. Kellen Vickers was repeatedly described by survivors as the gatekeeper who scheduled “massages,” organized travel, and prepared rooms—allegedly escorting underage girls into Epstein’s private quarters and instructing them on how to behave. Groff functioned as Epstein’s long-time executive assistant, handling logistics like flights, schedules, and household coordination that allowed the operation to run smoothly and discreetly. Marcinkova, a Slovak-born pilot and former model who lived within Epstein’s residence network, was alleged to have been both a sexual participant and a recruiter, and was later named as one of the individuals who received immunity under Epstein’s 2008 sweetheart deal.
Together, the roles of Ross, Kellen Vickers, Groff, and Marcinkova illustrate how Epstein’s criminal empire operated like a corporate structure—complete with scheduling, logistics, recruitment, transportation, and internal management that shielded Epstein from direct exposure. They formed a protective layer between Epstein and the victims, helping sustain a system designed to normalize abuse, silence resistance, and minimize the risk of interruption. The fact that none of these women have ever faced criminal prosecution, despite repeated accusations and extensive naming in legal proceedings, underlines the depth of systemic failure surrounding the Epstein case and raises the question of how an operation of this scale could have persisted for decades without intervention. These four figures remain emblematic of how Epstein did not act alone; he relied on a network that operated with precision—and that network has largely escaped accountability.
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