We examine the delusional beliefs that led two 12 year old girls to try and muder their good friend. References:Dewey, C. (2016, July 27). The complete history of ‘Slender Man,’ the meme that compelled two girls to stab a friend. The Washington Post. Retrieved from https://www.washingtonpost.com/news/the-intersect/wp/2014/06/03/ the-complete-terrifying-history-of-slender-man-the-internet-meme-that-compelled-t wo-12-year-olds-to-stab-their-friend/ Drane, M. (Producer). (2017, November 1). SlenderMan Psychology [Show #26]. Unpopular culture podcast. Podcast retrieved from http://www.upcpodcast.com/season1blog/2017/10/31/pn2xi3tt33oiwv4p1hyow92x4vymq5 Emery, D. (2017, January 20). The truth about Slenderman. Retrieved October 23, 2019, from https://www.snopes.com/fact-check/slenderman/ Gochman, P., Miller, R., & Rapoport, J. L. (2011). Childhood-onset schizophrenia: the challenge of diagnosis. Current Psychiatry Reports, 13(5), 321–322. https://doi-org.ezproxy.bellevue.edu/10.1007/s11920-011-0212-4Howard, Robert; “Folie a Deux Involving a Dog,” American Journal of Psychiatry, Joshi, K. D., Frierson, R. L., & Gunter, T. D. (2006). Shared psychotic disorder and criminal responsibility: A review and case report of folie à trois. The Journal of the American Academy of Psychiatry and the Law, 34(4), 511-517. Retrieved from http://jaapl.org/content/34/4/511#ref-list-1 Mar, A. (2017). Out Came the Girls: Adolescent Girlhood, the Occult, and the Slender Man Phenomenon. Virginia Quarterly Review, 93(4), 102. Retrieved from http://search.ebscohost.com.ezproxy.bellevue.edu/login.aspx?direct=true&db=f6h&AN=126274729&site=eds-liveMohdin, A. (2016, September 11). This bizarre road trip gone wrong may be a rare case of the shared psychosis called “folie à deux” in action. Quartz. Retrieved from https://qz.com/777918/ a-shared-psychosis-called-folie-a-deux-may-explain-why-the-tromp-family-went-miss ing-on-a-bizarre-road-trip/ Newman, W. J., & Harbit, M. A. (2019). Folie à deux and the courts. The Journal of the American Academy of Psychiatry and the Law, 38(3), 369-375. Retrieved from http://jaapl.org/content/38/3/369 Nunes, Alessandra & Nunes, Sandra & Strano, Talita & Pascolat, Gilberto & Dória, Gustavo & Ehlke, Mauricio. (2016). Folie à Deux and its interaction with early life stress: a case report. Journal of Medical Case Reports. 10. 10.1186/s13256-016-1128-8.Shared delusional disorder in the slenderman case [Blog post]. (n.d.). Retrieved from https://www.swordandscale.com/ shared-delusional-disorder-in-the-slenderman-case/ Sharon, I., & Blenenfeld, D. (2018, December 27). Shared psychotic disorder. Retrieved October 16, 2019, from https://emedicine.medscape.com/article/ 293107-overview Slender Man. (n.d.). Retrieved October 16, 2019, from https://en.wikipedia.org/ wiki/Slender_Man Soh, N. , Walter, G. , Robertson, M. and Malhi, G. S. (2010), Charles Lasègue (1816–1883): beyond anorexie hystérique. Acta Neuropsychiatrica, 22: 300-301. doi:10.1111/j.1601-5215.2010.00499.xStockton, R. (2015, May 16). A modern-day myth: the Slender Man. Retrieved October 16, 2019, from https://allthatsinteresting.com/slender-man Wehmeier, P. M., Barth, N., & Remschmidt, H. (2003). Induced delusional disorder: A review of the concept and an unusual case of folie a famille. Psychopathology, 36(1), 37-45. Retrieved from http://ezproxy.bellevue.edu:80/login?url=https://search-proquest-com.ezproxy.bellevue.edu/docview/230497450?accountid=28125Whitefoot, J. (2018, February 2). Morgan Geyser wiki: bio, parents, stabbing case, HBO documentary, and more. Retrieved October 16, 2019, from https://crimeola.com/ morgan-geyser-wiki-bio-parents-stabbing-case-hbo-documentary/