A Georgia jail inmate allegedly tried to hire a hit man to kill his ex-wife and her boyfriend in exchange for $800 and Atlanta Hawks tickets. Nancy Grace digs into the case against Michael McEarchern with criminal profiler Pat Brown, Dr. Brian Russell -- a lawyer and psychologist who hosts Investigation Discovery's Fatal Vows series -- and syndicated radio host Dave Mack. A Pennsylvania man is in big trouble with his mother-in-law, because she's also his wife. Christopher Hauptmann allegedly married his wife's teen-aged daughter without divorcing her mom, who he married a year earlier. Nancy and her guests dig into the dirt on this bigamy case.