John Douglas

John Douglas is a former FBI agent and criminal profiler, known for pioneering the field of criminal profiling in the United States. His work involves studying the behaviors and motivations of serial killers and other violent criminals to help law enforcement solve crimes. Douglas has authored several books, including "Mindhunter," which details his experiences and methods in understanding criminal psychology. He played a key role in developing techniques that help investigators anticipate future offenses and understand offenders' mindsets, ultimately contributing to advancements in criminal investigations and the psychology of crime.