Six days later, authorities found McNaughton dead in his mother’s house, according to Perry County Coroner Robert Ressler. Ressler said the cause and manner of death will be released Wednesday ...

The origins of criminal profiling trace back to the pioneering work of figures such as John Douglas and Robert Ressler. These ...

As a criminal profiler for the FBI, Dr. Ann worked alongside John Douglas and Robert Ressler in the Behavioural Science Unit. From mass murderers and assassins to serial killers, the pioneering ...