The following sources were consulted in the preparation of the article “13 historical figures who were far more dangerous than they looked.”
- Hanssen Pleads Guilty to Espionage
- The November 12, 1944 cable: Theodore Alvin Hall and Saville Sax
- Ex-Texas nurse pleads guilty in 1981 death of 11-month-old
- The Office of Special Investigations: Striving for Accountability in the Aftermath of the Holocaust December 2008
- Sara Jane Moore, who tried to assassinate President Gerald Ford in 1975, dies at 95
- The Genesee River Killer
- A woman imprisoned 20 years ago for the torture…
- A hospital orderly nicknamed the ‘Angel of Death’ pleaded…
- Klaus Barbie and the United States Government: A Report to the Attorney General of the United States August 1983
- Olson Lawyers: Missing Diary Is Key
- Nurse Convicted of Killing 4 Patients