Works Cited
http://www.zodiackiller.com/Victims.html
http://www.biography.com/people/zodiac-killer-236027#zodiac-killer-strikes-again
http://www.zodiackiller.com/Letters.html
http://www.zodiackiller.com/Suspects.html
http://elcoushistory.tripod.com/economics1960.html
http://www.zodiackiller.com/AllenFile.html
http://www.zodiackiller.com/SuspectMarshall.html
http://www.zodiackiller.com/SuspectGaikowski.html
http://elcoushistory.tripod.com/economics1970.html
http://www.manythings.org/voa/history/214.html
http://www.biography.com/people/zodiac-killer-236027#zodiac-killer-strikes-again
http://www.zodiackiller.com/Letters.html
http://www.zodiackiller.com/Suspects.html
http://elcoushistory.tripod.com/economics1960.html
http://www.zodiackiller.com/AllenFile.html
http://www.zodiackiller.com/SuspectMarshall.html
http://www.zodiackiller.com/SuspectGaikowski.html
http://elcoushistory.tripod.com/economics1970.html
http://www.manythings.org/voa/history/214.html