Dana Harding and Debra Prety

https://www.findagrave.com/memorial/112543689/duncan-peder-mckenzie
https://law.resource.org/pub/us/case/reporter/F2/801/801.F2d.1519.85-4156.html
https://greensboro.com/killer-listened-to-music-as-he-got-lethal-injection/article_d3ffe0bc-6dc8-593c-804c-72c7ddb5e2a8.html
https://www.facebook.com/EastIdahoColdCases/posts/october-26-1973-coeur-daleneafter-a-junior-high-dance-15-year-old-debra-prety-an/863086137230839/
https://www.spokesman.com/stories/1995/may/10/family-hopes-killer-admits-cda-murder-police-have/
https://law.justia.com/cases/federal/appellate-courts/F2/842/1525/295385/
https://www.greatfallstribune.com/story/news/2019/05/08/charles-jacobson-lawyer-who-defended-duncan-mckenzie-didnt-let-critics-define-him/1134734001/
https://case-law.vlex.com/vid/state-v-mckenzie-no-888714260
https://murderpedia.org/male.M/m1/mckenzie-duncan.htm
https://www.findagrave.com/memorial/104634453/lana-clare-harding
https://www.casemine.com/judgement/us/5914c5fbadd7b049347d7e04
https://www.facebook.com/groups/240052152694777
https://www.law.cornell.edu/supremecourt/text/449/1050
https://www.spokesman.com/stories/1995/may/11/killer-took-his-secrets-to-the-grave-family-of/
https://www.findagrave.com/memorial/84566744/debra-alice-prety
https://www.facebook.com/264247777114681/posts/remembering-debra-alice-prety-15-death-october-26-1973-coeur-dalene-idsometimes-/694768380729283/
Newspaper.com various articles
Fotojones.com