Pamela Smart tells People of affair with student that led to murder: 'I knew better'

In an exclusive interview with PEOPLE, the former New Hampshire school administrator – who was convicted in 1991 for persuading her then 16-year-old student lover, William "Billy" Flynn, to kill her husband Gregg – expresses regret and remorse about that affair. But she insists, as she has from the start, that she is innocent, despite her sentence of life without parole.
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