The Disappearance of Sandi Johnson: Journalist Craig Melvin explores some of the most chilling stories through first-hand accounts, told by those closest to the issue, which also includes investigators who are entrusted with solving the case and the families confronting tragedy.

After college student Angie Samota was stabbed to death, police had no shortage of suspects; a crucial clue narrowed their list to one name, but it would be years before technology and a tenacious friend came together to help unravel this mystery.