Pamela Smart’s husband, Gregg Smart, was found dead on May 1, 1990Pamela Smart in Rockingham County Court; Pamela Smart in 'Captivated: The Trial of Pamela Smart'Credit: Bettmann/Getty; Courtesy of HBONEED TO KNOWOn May 1, 1990, Gregg Smart was found dead in his homeIt was later revealed he was killed by the teenage boy with whom his wife, Pamela Smart, was having a sexual relationship withThe following year, Smart was convicted of conspiracy to…