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# Discord & Roblox: The pipeline to school shootings (w/ David Riedman)
- URL: https://fightingmatters.com/discord-roblox-the-pipeline-to-school-shootings-w-david-riedman/
- Published: 2026-03-03T11:01:20.000Z
- Updated: 2026-10-12T05:16:18.000Z
- Description: School violence researcher and Homeland Security expert David Riedman joins Steve and Jesse to break down the radicalization pipeline feeding modern school shootings.
- Author: Fighting Matters
- Tags: Podcast, Video, Extremism

School violence researcher and Homeland Security expert David Riedman joins Steve and Jesse to break down the radicalization pipeline feeding modern school shootings. David covers how isolated kids get pulled into nihilistic violence through deregulated social media, grooming on Roblox, and private Discord servers, and why your BJJ gym might be one of the most powerful interventions available.  
  
🔗 Links Mentioned:  
• Riedman Report (Substack) — [https://riedmanreport.substack.com](https://riedmanreport.substack.com/)  
• K-12 School Shooting Database — [https://k12ssdb.org](https://k12ssdb.org/?ref=fightingmatters.com)  
• Difference Between Political Violence, Mass Shootings, and Terrorism — <https://riedmanreport.substack.com/p/difference-between-political-violence>  
• Rise of Purposeless, Non-Ideological Gun Violence by Young American Men — <https://riedmanreport.substack.com/p/rise-of-purposeless-non-ideological>  
• Riedman Report Ep 43: Forensic Psychologist Explains the Nashville School Shooter's Journals — <https://riedmanreport.substack.com/p/ep-43-forensic-psychologist-explains>  
• Riedman Report Ep 33: Let Kids Fight (Safely) with Guardian Founder Ben Kovacs — <https://riedmanreport.substack.com/p/ep-33-let-kids-fight-safely-with>  
  
⸻  
  
👥 Featuring:  
• Steve Kwan — @bjjmentalmodels (Host)  
• Jesse Walker — @roughhandsbjj (Host)  
• David Riedman — [https://riedmanreport.substack.com](https://riedmanreport.substack.com/) (Guest)  
  
⸻  
  
🧠 Topics Discussed:  
• The Tumbler Ridge shooting and the pattern behind it  
• How the True Crime Community radicalizes teens online  
• Roblox as a grooming and recruitment platform  
• The Discord pipeline from mainstream social media to extremism  
• Trans shooters and what the data actually says  
• Nihilism vs. ideological terrorism  
• Why expelling a troubled kid can make things worse  
• How BJJ gyms provide the belonging that prevents violence  
  
⸻  
  
📖 Chapters:  
[00:00](https://www.youtube.com/watch?v=pnyseXmNMmM&ref=fightingmatters.com) — Introduction  
[00:35](https://www.youtube.com/watch?v=pnyseXmNMmM&t=35s&ref=fightingmatters.com) — Meet David Riedman  
[02:13](https://www.youtube.com/watch?v=pnyseXmNMmM&t=133s&ref=fightingmatters.com) — Tumbler Ridge and the True Crime Community  
[08:02](https://www.youtube.com/watch?v=pnyseXmNMmM&t=482s&ref=fightingmatters.com) — Understanding nihilistic violence  
[10:17](https://www.youtube.com/watch?v=pnyseXmNMmM&t=617s&ref=fightingmatters.com) — Extremism, terrorism, and how to tell them apart  
[14:15](https://www.youtube.com/watch?v=pnyseXmNMmM&t=855s&ref=fightingmatters.com) — Active clubs and decentralized radicalization  
[18:40](https://www.youtube.com/watch?v=pnyseXmNMmM&t=1120s&ref=fightingmatters.com) — Trans shooters: what the data says  
[22:23](https://www.youtube.com/watch?v=pnyseXmNMmM&t=1343s&ref=fightingmatters.com) — The Nashville manifesto breakdown  
[27:51](https://www.youtube.com/watch?v=pnyseXmNMmM&t=1671s&ref=fightingmatters.com) — Has social media changed anything?  
[31:45](https://www.youtube.com/watch?v=pnyseXmNMmM&t=1905s&ref=fightingmatters.com) — The Roblox grooming pipeline  
[38:40](https://www.youtube.com/watch?v=pnyseXmNMmM&t=2320s&ref=fightingmatters.com) — Can martial arts gyms use these same tactics for good?  
[41:53](https://www.youtube.com/watch?v=pnyseXmNMmM&t=2513s&ref=fightingmatters.com) — Everything that feels new is really old  
[49:58](https://www.youtube.com/watch?v=pnyseXmNMmM&t=2998s&ref=fightingmatters.com) — Warning signs for parents and gym owners  
[54:43](https://www.youtube.com/watch?v=pnyseXmNMmM&t=3283s&ref=fightingmatters.com) — Closing thoughts