Douglas Garland

https://www.cbc.ca/news/canada/calgary/douglas-garland-investigation-nathan-obrien-liknes-operation-amber-lee-treit-1.3982966
https://www.vice.com/en/article/8qw8z3/how-the-man-who-committed-one-of-canadas-most-gruesome-murders-was-caught
https://en.wikipedia.org/wiki/Disappearance_of_Nathan_O%27Brien,_Kathryn_Liknes_and_Alvin_Liknes
https://globalnews.ca/news/1432691/police-hope-driver-of-green-truck-has-information-about-missing-family/
https://globalnews.ca/news/1445696/timeline-missing-calgary-family-nathan-obrien-alvin-and-kathryn-liknes/
https://patents.justia.com/inventor/alvin-liknes
https://nationalpost.com/news/canada/nathan-obriens-grandfather-had-petty-dispute-with-douglas-garland-over-patent-calgary-family-says
https://globalnews.ca/news/1432691/police-hope-driver-of-green-truck-has-information-about-missing-family/
https://globalnews.ca/news/6262571/decision-expected-in-appeal-of-calgary-triple-murderer-douglas-garland/
https://www.cbc.ca/news/canada/calgary/douglas-garland-murder-trial-jury-deliberation-matthew-hartley-1.3968039
https://web.archive.org/web/20170320112826/http://www.calgarysun.com/2017/02/18/convicted-triple-murderer-douglas-garland-attacked-by-multiple-inmates-in-calgary-remand-centre
https://truecrimedaily.com/2017/05/16/boy-grandparents-grotesquely-murdered-remains-burned-over-business-dispute/