Notable profilers include Roy Hazelwood , who profiled sexual predators ; Ernst Gennat , a German criminologist ; Walter Charles Langer , who predicted Hitler 's behavior and eventual suicide ; Howard Teten , who worked on the case of Martin Luther King Jr 's assassination ; and John E. Douglas , who worked on a wave of child murders in Atlanta in the 1980 's
child murders in Atlanta
Atlanta murders of 1979–81
Offender profiling