Executive Producers Matt Frederick and Trevor Young sit down for an exclusive behind-the-scenes conversation about the makings of the Monster series. Get the scoop from the beginning and find out how a one-off investigation into a serial killer in Atlanta became an award-winning global podcast franchise.

See omnystudio.com/listener for privacy information.

For over 20 years, Ken Tekiela was a celebrated firefighter, husband, and father of two —but he led a secret, double life as a hitman for the Chicago mob. When the truth came out, it destroyed his family. Now, his son Kyle, host of Crook County, is left to pick up the pieces.

Crook County is the shocking true crime podcast about Kenny “The Kid” Tekiela’s rise through the ranks of the legendary organized crime syndicate, the Chicago Outfit, and the lasting impact this has on a family. From iHeartRadio and Tenderfoot TV, welcome to Crook County. Follow the show here. To binge the full season, subscribe to Tenderfoot+. Click here for more details: https://tenderfoot.tv/plus

See omnystudio.com/listener for privacy information.

‘Monster: BTK’, the newest installment in the ‘Monster’ franchise, reveals the true story of the Wichita, Kansas serial killer who murdered at least 10 people between 1974 and 1991. Known by the moniker, BTK – Bind Torture Kill, his notoriety was bolstered by the taunting letters he sent to police, and the chilling phone calls he made to media outlets. BTK’s identity was finally revealed in 2005 to the shock of his family, his community, and the world. He was the serial killer next door.

The first two episodes are available on January 13th here. For an ad-free binge experience subscribe to iHeart True Crime+.

See omnystudio.com/listener for privacy information.

A new season. A new monster. Coming January 13th... MONSTER: BTK. Binge all previous season of Monster now! [Listen]

See omnystudio.com/listener for privacy information.

More suspects bring more questions.

See omnystudio.com/listener for privacy information.

A frightening final theory.

Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

See omnystudio.com/listener for privacy information.

New technology brings fresh hope to the Zodiac case. But what if it's still a dead end? 

See omnystudio.com/listener for privacy information.

Fascination leads beyond obsession, as a new Zodiac emerges in New York City. 

See omnystudio.com/listener for privacy information.

New theories bring new suspects. But for many independent investigators, those theories are truth. 

See omnystudio.com/listener for privacy information.

Toschi's investigation led to a dead end, but independent investigators are chasing down other leads. 

See omnystudio.com/listener for privacy information.