// Workers AI · dad joke modeWhat did the True Crime Community member say? "I'm dying to discuss this case.
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The True Crime Community (TCC) is an online fandom and subculture with an obsessive interest in true crime, particularly serial killers and high-profile mass murderers.[1][2] The TCC comprises individuals who engage with true crime podcasts, articles, web forums, and social media. It has a large presence across social media platforms, including TikTok, Reddit, Twitter and Tumblr. The term encompasses consumers of mainstream true crime content, as well as a more obscure extremist fringe.[3]
Several members of the TCC have gone on to commit their own crimes inspired by previous acts of violence, especially in the aftermath of the 2024 Abundant Life Christian School shooting.[4][2] It has been linked to nihilistic violent extremism and hybristophilia.[2][5][6]
Background
"Columbiners"
The TCC developed in part from online communities surrounding the perpetrators of the 1999 Columbine High School massacre, including the "Columbiner" fandom. The fandom emerged on early online message boards in the late 1990s and early 2000s and expanded alongside the growth of social media. Columbiners influenced other online communities centered on perpetrators of mass shootings. The TCC emerged more broadly in the late 2010s as social media use and engagement among young people increased.[7] There is also a connection to online gore communities, as videos of graphic violence are often circulated in the TCC.[7] Adam Lanza, the perpetrator of the 2012 Sandy Hook Elementary School shooting, participated in online communities associated with the TCC on Tumblr. He shared images of mass shooting victims and footage of school shooters through his Tumblr blogs, “gayfortimk” and “queerforkimveer”, whose names referenced school shooters Tim Kretschmer and Kimveer Gill.[8]
History

Connection to real-world violence
Although mass-casualty attacks are more common in the United States, the TCC is an international phenomenon. TCC members have been linked to attacks and threats in countries including Austria, Mexico, Australia, Romania and Russia.[4][9] Analysts have identified copycat pattern within the community, in which mass-casualty attacks can generate increased activity, particularly when perpetrators have participated in TCC spaces. The notoriety gained by attackers can encourage other members to imitate them or seek recognition within the community.[4]
This pattern was particularly notable following the 2024 Abundant Life Christian School shooting in Wisconsin, after which the perpetrator, 15-year-old Natalie Rupnow, became notorious in TCC communities. Her prominence was further amplified when the perpetrator of the 2025 Antioch High School shooting, described as an online associate of Rupnow, referenced her before the attack, and the perpetrator of the 2025 Annunciation Catholic Church shooting wrote her name on his rifle.[4] According to research by the Institute for Strategic Dialogue (ISD), at least four school shooters and five plots in 2024 were linked to TCC online communities. ISD further reported that the four attacks resulted in eight deaths, excluding the perpetrators, exceeding the number of fatalities attributed to ideologically motivated extremist violence in the United States during 2024.[10][11]
In the aftermath of the April 2026 Teotihuacan shooting in Mexico, Milenio and El Universal, speculated about the perpetrator's ties to the TCC.[12][13] In June 2026, the Institute for Strategic Dialogue found that the two perpetrators of a shooting in the previous month at the Islamic Center of San Diego, though primarily motivated by neo-Nazi accelerationism and white supremacy, had online engagement with and a broader influence from nihilistic extremist online subcultures such as the TCC.[14]
Causation and ideology
The TCC has been described by researchers as an online subculture associated with nihilistic violent extremism, rather than a coherent political ideology. TCC-linked attacks are generally not intended to achieve political objectives. Researchers have identified motivations including personal grievances, identity issues, mental health struggles, and a desire for recognition within the TCC community. Perpetrators of such attacks have left manifestos, social media posts, or other online material expressing admiration for previous mass shooters, alongside feelings of alienation, hopelessness, misanthropy, or dissatisfaction with their lives, society, or the future.[11][10]
Content and games

Use of generative AI
Members of the TCC, on social media platforms such as TikTok and Instagram, create AI-generated videos in which notorious terrorists and mass murderers are depicted dancing against the backdrop of the sites where they carried out their attacks, with references to their victims usually expressed as the number of people killed.[15]

Recreations of real-world violence in video games
Members of the TCC have used games such as Minecraft and Roblox to recreate locations and events associated with real-world violence.[7] Recreations of real-world mass casualty attacks on the gaming platform Roblox have been documented as a recurring phenomenon within the TCC.[17] Groups affiliated with the TCC, sometimes styling themselves as "game studios," develop and circulate in-game maps that simulate events such as the 1999 Columbine High School massacre, the 2022 Uvalde school shooting, and the 2018 Parkland high school shooting, among others.[18]
Censorship
Beginning in January 2026, keywords and phrases associated with the community were being blocked and that related material was being removed on Tumblr, the content on Tumblr included fan art and fictional stories. In response, community members adopted alternative signifiers, including emojis, altered spellings, and coded language, to continue producing content despite increased moderation.[7][3] The increased moderation of TCC-related content on Tumblr, has resulted in TCC-related content becoming prevalent on TikTok.[3]
See also
- Columbine effect – Legacy of the 1999 Columbine massacre
- Terrorgram – Network of neo-fascist Telegram channels
References
- ↑ Darnell, Tim (29 July 2026). "Apalachee school shooter followed online subculture known as 'TCC'". Atlanta News First. Retrieved 20 September 2026.
- 1 2 3 "Memetic violence: How the True Crime Community generates its own killers". Institute for Strategic Dialogue. 2 October 2025. Archived from the original on 19 March 2026. Retrieved 23 May 2026.
- 1 2 3 "TikTok Serving as a Refuge for a Fandom Encouraging the Next School Shooters". Global Project Against Hate and Extremism. 9 March 2026. Retrieved 20 September 2026.
- 1 2 3 4 "Memetic violence: How the True Crime Community generates its own killers". Institute for Strategic Dialogue. Retrieved 20 September 2026.
This "copycat" or clustering phenomenon was supercharged in the aftermath of the December 2024 Abundant Life Shooting in Wisconsin. The perpetrator, 15-year-old Natalie Rupnow, achieved a level of celebrity in online TCC spaces that is generally reserved for the most notorious mass attackers. ISD analysts found that Rupnow rose to prominence because she was not only a mass attacker, but also an active participant in TCC fora. She was known to members of the community and left a robust digital footprint for fans to dissect.
- ↑ Smith, Cadenhead & Broekaert 2026, p. 19.
- ↑ Ondrak, Joe; Vitelli, Laura (18 December 2025). "Participatory Memetic Violence: Legend, Ostension, and Ideologically Diffuse Violence". GNET. Archived from the original on 13 February 2026. Retrieved 23 May 2026.
- 1 2 3 4 Hummel, Kristina (19 February 2026). "True Crime Community: Understanding the Depths of Digital Fandom and Performative Violence". Combating Terrorism Center at West Point. Retrieved 20 September 2026.
- ↑ Weill, Kelly (11 January 2019). "Inside the Tumblr Community Where Women Worship Killers". The Daily Beast. Retrieved 2 September 2026.
Adam Lanza, the man who murdered 20 children and six staffers at Sandy Hook Elementary School in 2012, was a TCC member
- ↑ Kozachenko, Dima (20 January 2018). "Сообщество тру-крайм: как интерес к убийствам превратился в подростковую субкультуру" [True Crime Community: How an interest in murder became a teenage subculture]. Afisha Daily (in Russian). Archived from the original on 3 November 2018. Retrieved 23 May 2026.
- 1 2 "Terror without ideology? The rise of nihilistic violence". Institute for Strategic Dialogue. Retrieved 11 July 2026.
- 1 2 "Nihilistic Violence: Understanding Online Networks Obsessed With Harm". Global Project Against Hate and Extremism. 29 December 2025. Retrieved 11 July 2026.
- ↑ Brito, Omar (20 April 2026). "The True Crime Community: el fenómeno social al que estaría ligado el tirador de Teotihuacan" [The True Crime Community: the social phenomenon to which the Teotihuacan shooter appears to be linked]. Milenio. Archived from the original on 24 April 2026. Retrieved 23 May 2026.
- ↑ "¿Qué es la True Crime Community? la liga que une al ataque de Teotihuacán con Columbine" [What is the True Crime Community? The link between the Teotihuacan attack and Columbine]. El Universal. 21 April 2026. Archived from the original on 23 April 2026. Retrieved 23 May 2026.
- ↑ "San Diego mosque shooting highlights new generation of neo-Nazi accelerationism". Institute for Strategic Dialogue. Retrieved 6 July 2026.
- ↑ Lucini, Silvano Rizieri (26 February 2026). "An 'Ode to Violence': Extremist Exploitation of Viggle AI". GNET. Retrieved 25 August 2026.
- ↑ "The Dark Side of Roblox: 'Active Shooter Studios' Create Maps Based on Real-Life Mass Shootings | ADL". www.adl.org. Retrieved 20 September 2026.
- ↑ "The Mechanisms of Resilience: How True Crime Community 'Game Studios' Persist on Roblox". VOX - Pol. 17 June 2026. Retrieved 19 September 2026.
- ↑ "The Dark Side of Roblox: 'Active Shooter Studios' Create Maps Based on Real-Life Mass Shootings". ADL. Retrieved 19 September 2026.
Works cited
- Smith, Peter; Cadenhead, Cat; Broekaert, Clara (2026). "True Crime Community: Understanding the Depths of Digital Fandom and Performative Violence". CTC Sentinel. 19 (2). West Point: Combating Terrorism Center: 17–26.
Further reading
- McFadden, Simon (2026). "Exploring Serial Killer Dark Fandom Practice in the Digisphere". In Hobbs, Simon; Hoffman, Megan (eds.). #Truecrime: digital culture, ethics and true crime audiences. Palgrave fan studies. Cham: Palgrave Macmillan. pp. 279–304. doi:10.1007/978-3-031-99390-9_14. ISBN 978-3-031-99390-9.