In 1990 at age 22, Smart was accused of conspiring with her then 15-year-old lover William "Billy" Flynn and three of his friends to have her 24-year-old husband Greggory Smart killed in Derry, New Hampshire.
She was later convicted of being an accomplice to first-degree murder, conspiracy to commit murder, and witness tampering.
She is currently serving a life sentence at Bedford Hills Correctional Facility for Women, a maximum security prison in Westchester County, New York.