The Sheridans’ eldest son Mark is consumed with getting to the bottom of what happened to his parents. As the lawyer for Governor Chris Christie’s election campaign, Mark is in a unique position to uncover answers. Instead, he’s met with roadblock after roadblock. The questions really pile up when he learns that detectives haven’t even interviewed several key witnesses or completed a thorough investigation of the crime scene. Not only that, a key piece of evidence is missing. New voices interviewed in episode: Barry Jansen, retired forensic technician for the Somerset County Prosecutor's Office Tom Draper, Sheridans’ neighbor Michael Baden, medical examiner hired by the Sheridan brothers