Texas Ranger's Interrogation Secrets Revealed in New ID Series

Investigation Discovery launches a new true crime series on January 13, 2026, that puts a veteran lawman's interrogation techniques under the spotlight. 'Killer Confessions: Case Files of a Texas Ranger' follows James B. Holland, a retired Texas Ranger with more than 25 years in law enforcement who has worked on hundreds of murder cases throughout his career.

Holland has earned a distinctive reputation in law enforcement circles as the "serial killer whisperer" for his ability to extract confessions during interrogations. The eight-episode first season capitalizes on this skill set, examining high-profile cases that shaped Holland's career and demonstrating the methods that made him effective in the interview room.

The two-hour series premiere, titled "Pathologically Evil," focuses on four missing women—Laura Smither, Kelli Cox, Tiffany Johnston, and Jessica Cain—and suspected serial killer William Reece. Subsequent episodes tackle an array of cases spanning different circumstances and jurisdictions.

"Lie, Cheat, Kill" (January 20) examines the disappearance of Crystal McDowell, a realtor and mother who vanished during Hurricane Harvey in Houston. "True Crime Lies" (January 27) shifts focus to a Pennsylvania , while "A Mother's Manipulation" (February 3) explores a disturbing case involving two children found dead in a hot car.