Gregory Palmer

Victims' rights activist John Walsh and his son, Callahan, showcase time-sensitive, unsolved cases in desperate need of attention, mobilizing the public to engage in the pursuit of justice.

Takes a deep dive into the stories of unforgettable murders from the streets of Philadelphia. Told through the eyes of veteran homicide detectives, local reporters and the victim's families who have lost so much, these are the cases they will never forget.

The series allows viewers a peek inside the lives of the rich and famous as they show off their current homes and tour more amazing ones on the market.

Ride along with the NTSB and its inter-agency partners as they work together towards determining the probable cause of aircraft accidents. These NTSB investigations provide a window into the integral role of air travel in Alaskan life, while raising awareness that might prevent future accidents.

Delving into our collective nightmares, this horror-documentary investigates the origins of our most terrifying urban legends and the true stories that may have inspired them.

The complete story of Henry Louis Wallace and the panic he unleashed in the city of Charlotte has never been told on television before," says Henry Schleiff Group President of Investigation Discovery, Travel Channel, Destination America and American Heroes Channel. "'Bad Henry' showcases the fearless tenacity of Garry McFadden and his team in their efforts to capture this killer, providing justice, and most importantly, closure to the victims and their families

On a coastal section part of Highway 1 in Mendocino County, California, a car was found upside down at the bottom of a 100-foot cliff. Inside police found the bodies of two adults, later identified as Jen and Sarah Hart, and three children. From the very onset, it seemed more than a normal traffic accident, and it continued to be a confusing and shocking story - both for the local community and the online supporters who had followed the family’s adventures for years. They were known as a couple leading an idyllic life. Two white women who adopted six black children, promoting a core mission of activism, travel, and community service. As the story of the crash circulated, many began to wonder how this could have happened to a family like theirs, and if maybe the life they showed to the world, wasn’t exactly what it seemed.