Premise: Wondering how the events really happened, HLN's original series revisits and reveals new answers to notorious crimes, mysteries, trials, and celebrity tragedies. The premiere delves into the sensational trial of brothers Lyle and Erik Menendez, including the shocking motive for the brutal murders of their wealthy parents. From there, episodes dissect new clues and re-examine conspiracy theories connected to, among others, the John F. Kennedy Jr. plane crash, the deaths of music royalty Prince, Michael Jackson and Whitney Houston, and the FBI's investigation of ``Unabomber'' Ted Kaczynski. Included are fresh accounts from witnesses who speak publicly about the cases for the first time. Actor Hill Harper, best known for his role on ``CSI: NY,'' hosts.