Former television actress and high-ranking NXIVM member Allison Mack awaits sentencing this week for crimes involving Keith Raniere's cult organization.

Mack pleaded guilty to racketeering and racketeering conspiracy charges in April 2019 and is scheduled to be sentenced June 30. In a sentencing memo last week, she distanced herself from Raniere, calling him "a twisted man."

On this episode of NXIVM on Trial, former NXIVM coach Tabby Chapman shares her own experiences with Mack, with whom she worked closely with for a time. Chapman recalls Mack's infectious charisma and the "Smallville" star's unpredictable darker side.

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