John Douglas is a legendary FBI criminal profiler and the author of true crime books. He is considered a pioneer in the field of criminal profiling.
He spent more than twenty-five years researching and profiling America’s most violent and dangerous criminals. After serving in the U.S. Air force, John Douglas joined the FBI in 1970. He served a SWAT team and was a hostage negotiator before he transferred to the FBI’s Behavioral Sciences Unit in 1977. Later he taught hostage negotiation and...
