.png){kind=small}
Courtesy of Drew Angerer/Getty Images
More than two years after pleading guilty to racketeering conspiracy and racketeering charges, Allison Mack — the disgraced Smallville actress who would become a prominent leader within NXIVM, the dismantled, Keith Raniere-led self-help group some have characterized as a cult — was sentenced this morning to 3 years in federal prison, PEOPLE learns.