Lorraine Markus Dirienzo

The special examines the motives behind and analysis of the shocking attacks that took place Friday in Oslo and on the nearby island of Utoya. Anders Behring Breivik, a 32-year-old Norwegian, is accused of perpetrating the twin attacks, in which 76 people died.

Best-selling author Whitley Strieber revisits the site of his traumatic alien encounter for the first time in several decades.

Shark cinematographers Andy Casagrande and Dickie Chivell travel to South Africa on a mission to capture the largest breaching great white shark ever recorded.

After a surfer dies off Morro Bay, Calif., on Christmas Eve, shark attack investigators Ralph Collier and Brandon McMillan use forensic evidence and eyewitness accounts to identify the suspected killer: an 18-foot great white.

From the outside, families seem like harmonious units in loving homes. But you don't necessarily know what secrets families are hiding from the outside world. Narrated by actress Brenda Strong, the voice of Desperate Housewives character Mary Alice Young, this series explores families hiding the most extreme of family secrets: murder. Each episode explores a death in a family, unravelling the motives of the family members, all of whom are potential suspects - and potential victims.

Exactly one hundred years after Robert L. Ripley launched the brand, this reboot explores the bizarre, extraordinary, the death defying, the odd and the unusual with astonishing, real, one-of-a-kind stories.

Southern Fried Homicide probes the juiciest stories from down in the Bible Belt. Classic true crime is served up against a backdrop of Southern hospitality, etiquette and Christian values. Good ol' morals give way to cold-blooded murder in these grim tales of love gone wrong, business deals turned sour, families divided, and more.

The stories of real people who are tormented by the past and take extreme measures to solve the murders of loved ones.