https://law.justia.com/cases/maine/supreme-court/2008/08me77ni.html
https://murderpedia.org/male.N/n/nielsen-christian.htm
https://www.sunjournal.com/2006/09/16/troubled-childhood/
https://www.sunjournal.com/2007/10/30/nielsen-team-files-appeal/
https://thecinemaholic.com/where-is-christian-c-nielsen-now/
https://thecinemaholic.com/james-whitehurst-murder-where-is-christian-nielsen-now/
https://thecinemaholic.com/christian-c-nielsens-victims/
https://web.archive.org/web/20221205014213/https://www.nytimes.com/2006/09/06/us/06maine.html
https://eu.southcoasttoday.com/story/news/state/2007/10/10/maine-man-pleads-guilty-to/52772848007/
https://www.newspapers.com/image/665244382/?clipping_id=63177907&fcfToken=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJmcmVlLXZpZXctaWQiOjY2NTI0NDM4MiwiaWF0IjoxNjkzMjM3Njc4LCJleHAiOjE2OTMzMjQwNzh9.9QANqPH0-9vmHQvo1bl8eZ238RoFbdq2DsW90nG1trc
https://www.newspapers.com/article/63177623/christian-nielsen-insanity-plea-may/
http://archive.boston.com/news/local/maine/articles/2006/09/07/rent_dispute_may_have_preceded_maine_deaths/?__goto=loginpage
https://web.archive.org/web/20221205014218/https://www.sunjournal.com/2007/07/03/nielsen-attends-hearing/
https://eu.southcoasttoday.com/story/news/2006/11/08/nielsen-said-he-bought-gun/50406027007/
https://www.arkansasonline.com/news/2007/sep/20/man-accused-killing-4-maine-deemed-competent-stand/
https://www.findagrave.com/memorial/15916100/cynthia-ellen-beatson
https://www.findagrave.com/memorial/105424165/julie-attebury-bullard
https://www.findagrave.com/memorial/105419041/james-william-whitehurst
https://eu.southcoasttoday.com/story/news/2006/09/07/detectives-seek-motive-in-grisly/50303793007/
Photo of Newry sign:
By P199 - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=18061354