Jesse L. Martin takes an in-depth look at some of the most notorious crimes, mysteries, trials and celebrity tragedies of our time.

A look at the hunt for California's Zodiac Killer, who murdered at least five people in the San Francisco Bay Area in the late 1960s and early '70s.

Mark "Chopper" Read established a reputation of infamy by becoming one of the toughest criminals in Australian history. But in order to secure the affections of the woman he loves, Chopper fights to go straight. Yet the sins of his past, his ego and an ongoing feud with Syd Collins will make his hopes of a straight life a dangerous and near-impossible enterprise. Underbelly Files: Chopper explores the collision of Chopper's two competing identities — the myth and the man.

Cellmate Secrets revisits some of the most infamous stories of headline-grabbing criminals. Actress Angie Harmon narrates the series, which reveals new insights and information as former friends, guards, cellmates and lovers give first-hand accounts of their time with the famed felons and defendants.

Following a team of investigators as they explore new leads suggesting there may be more than Fred and Rose West's victims than their 12 known murders, making the use of Ground Penetrating Radar in new locations.

Go between the lines with the authors who have written the definitive accounts of infamous crimes. Adapted from the critically acclaimed true crime bestseller's, each author tell their infamous stories on-camera. Each story is told only from the author's perspective.