The Murders Before the Marathon

In each one-hour episode, Tamron Hall is joined by a core team of correspondents with extensive knowledge of law enforcement and a passion for storytelling. Series goes beyond the headlines to explore not only what happened, but why it happened, and how it was investigated.

For the third time, HBO cameras go inside Trenton State Maximum Security Prison--and inside the mind of one of the most prolific killers in U.S. history--in this gripping documentary. Mafia hit man Richard Kuklinski freely admits to killing more than 100 people, but in this special, he speaks with top psychiatrist Dr. Park Dietz in an effort to face the truth about his condition. Filled with more never-before-revealed confessions, it's the most chillingly candid Iceman special yet as it combines often-confrontational interview footage between Kuklinski and Dietz with photos, crime reenactments and home movies that add new layers to this evolving and fascinating story.

Hollywood careers are full of make-or-break moments. For Clint Eastwood, one such moment came when studio powers agreed to let him make his directing debut. That story and others comprise this portrait of the famed Hollywood icon. His career is explored via an array of film clips, interviews and more.

To detail how drugs push people into risky — even deadly — behaviors, a former CIA analyst investigates the economics of six illicit substances.

What happens when a machine makes life-or-death decisions? This documentary explores the dangers of artificial intelligence in military application.

What happens after we die? This docuseries explores personal stories and research on near-death experiences, reincarnation and paranormal phenomena.

Noted Harvard scholar Henry Louis Gates, Jr. has been helping people discover long-lost relatives hidden for generations within the branches of their family trees. Professor Gates utilizes a team of genealogists to reconstruct the paper trail left behind by our ancestors and the world’s leading geneticists to decode our DNA and help us travel thousands of years into the past to discover the origins of our earliest forebears.

A three-part docuseries, revealing the true story of Jordan Belfort and his boiler room brokers at Stratton Oakmont, which is even darker and more debauched than previously known.

After decades in prison, Todd Scott, Chad Campbell, and Carlos Rebollo navigate the complex bureaucracy of the parole system and deal with its psychological toll. All three men, incarcerated as teens, wrestle with the weight of their crimes, questioning how they can appropriately express their deep remorse to a parole board that will determine whether they are released.

What happens when a 30-something woman allows life's "what if"s to overwhelm her appreciation for what life actually is? Disregarding her current obligations, she digs into her romantic past in hopes of invigorating her present.

Explores the disappearance of Alissa Turney in 2001, with her sister Sarah giving unprecedented access to the continuation of her story, including a recently unearthed trove of home videos, as she re-examines her and Alissa’s childhood. Sarah makes chilling discoveries, breaking through years of manipulation to reconstruct the truth of the past and be free of her father’s influence. Sarah’s final conversation with her father is haunting and a testament to her tenacity and unending search for Alissa.

Host Neil deGrasse Tyson tackles one of science's major challenges in each segment of Where Did We Come From? He will guide us as he explores dramatic discoveries and the frontiers of research that connect each central, provocative mystery. Program includes: Revealing the Origins of Life; Origins of the Solar System; Lice and Human Evolution; and Profile: Andre Fenton

Dan is crazy. He's schizophrenic, he has delusions that he's a rock star, and he's haunted by the voice of a controlling band manager who doesn't actually exist. When he gets thrown in the psych ward again, he meets Melody, a feisty punk girl who teaches him how to love. Like crazy.

Portrait of an anonymous overdose hotline where people call before using, and volunteers stay on the line, racing against time, forging collective hope amid addiction.

"City of Joel" is documentary - with unprecedented access - to a 1.1 square mile shtetl in the suburbs that is home to 22,000 members of an one of the most insular and orthodox Hasidic sects. We follow the battles they are waging to survive. Just 50 miles north of New York City, the Satmar sect has built Kiryas Joel as a religious haven where they can be fruitful, multiply and follow the 613 rules of the Talmud. But with some of the highest rates of marriage, birth and religious observance in the country, they have been almost too successful. Developers have come up with a plan to double the size of the village to keep up with this growth, but their neighbors fight back because they believe it will harm the environment and tilt the balance of political power.