-http://www.crimelibrary.com/serial_killers/predators/john_robinson/index.html
- http://listverse.com/2009/01/15/10-lesser-known-serial-killers/
- http://criminalminds.wikia.com/wiki/John_Edward_Robinson
- http://www.examiner.com/article/top-historical-events-of-the-1980s
- http://history1900s.about.com/od/timelines/tp/1990timeline.htm
- http://maamodt.asp.radford.edu/Psyc%20405/serial%20killers/Robinson,%20John%20Edward%20-%202005.pdf
- http://listverse.com/2009/01/15/10-lesser-known-serial-killers/
- http://criminalminds.wikia.com/wiki/John_Edward_Robinson
- http://www.examiner.com/article/top-historical-events-of-the-1980s
- http://history1900s.about.com/od/timelines/tp/1990timeline.htm
- http://maamodt.asp.radford.edu/Psyc%20405/serial%20killers/Robinson,%20John%20Edward%20-%202005.pdf