Watch Gangsters: America's Most Evil

Gangsters: America's Most Evil is a true crime series that aired on Biography Channel from 2012 to 2015. The show follows the stories of some of the most notorious criminals in American history, detailing their rise to power, their crimes, and the eventual downfall that ended their reigns of terror.

Hosted by British author and former member of a UK chapter of the Hell's Angels, Bernard O'Mahoney, the show features interviews with law enforcement officials, experts, and other figures connected to the cases. Through dramatic reenactments and archive footage, Gangsters: America's Most Evil portrays the dark and violent world of organized crime that has plagued America for decades.

Each episode focuses on a different criminal or criminal group, highlighting their unique backgrounds and methods of operation. From the ruthless drug kingpins of the 1980s to the notorious gangsters of the Prohibition era, the show covers a wide range of stories that are both fascinating and disturbing.

The first season of the show features episodes on notorious gangsters such as John Gotti, the Teflon Don, who became the head of the Gambino Crime Family in the late 1980s; James "Whitey" Bulger, the leader of Boston's Winter Hill Gang who evaded capture for years before finally being apprehended in 2011; and Anthony "Gaspipe" Casso, a former underboss of the Luchese Crime Family who later turned informant.

Other episodes include the story of the notorious Black Mafia Family, a drug trafficking organization that specialized in distributing large amounts of cocaine throughout the U.S.; and the rise and fall of Larry Hoover, the leader of Chicago's notorious Gangster Disciples, who was sentenced to life in prison in 1997.

In subsequent seasons, the show covers even more notorious criminals, including the serial killer Robert Hansen, who abducted, raped, and murdered at least 17 women in Alaska; and the Mexican drug lord Joaquín "El Chapo" Guzmán, who famously escaped from prison twice before finally being extradited to the U.S. in 2017.

Throughout the show, Bernard O'Mahoney provides insight into the workings of organized crime and the psychology of the criminals involved. He highlights the factors that led them to a life of crime and the motivations behind their violent and often senseless actions. He also explores the impact that these criminals had on their communities and the legacy that they left behind.

Gangsters: America's Most Evil is a gripping and intense series that delves into the dark world of organized crime. Combining interviews, reenactments, and archive footage, the show tells the story of some of the most notorious criminals in American history, providing a fascinating insight into their lives and their crimes. Whether you are a true crime enthusiast or simply looking for a show that will keep you on the edge of your seat, Gangsters: America's Most Evil is a must-watch.

Gangsters: America's Most Evil is a series that ran for 6 seasons (72 episodes) between July 20, 2012 and on Biography Channel