A gripping investigation as detectives reopen the cold case of Melissa Witt's murder. Over three decades later, they pursue new leads to uncover the truth and bring her killer to justice.

30 years after the homicide of 19-year-old Melissa Witt, a group of detectives from neighboring agencies band together in an attempt to re-examine the case file for new leads that may bring a resolution to her case and justice to her friends and family. Follow along with investigators as they chase potential suspects and work to finally zero in on the person responsible for her murder.—ABC News Studios