Plot summary
When a former mob hit man on death row suddenly has a change of heart and agrees to confess to his crimes, Don has an uneasy feeling about the whole affair. Larry ( Peter MacNicol ) returns from his NASA mission. Jeremy Sisto, Wood Harris and Bruce MacVittie guest star. Kathy Najimy makes her final appearance of the season as Dr. Millie Finch. Mathematics used: Probability theory and tit for tat
Credits
Adapted from Wikipedia contributors, Numbers season 3. HTML formatting and reference markers removed.