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| Extremism & Violent Networks |
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Dallas Humber, of Elk Grove, California, led the Terrorgram Collective's inner circle from July 2022, pleaded guilty to all 15 counts in August 2025 and was sentenced to 30 years on December 17, 2025. | 2026-05-21 | 2026-05-22 | 1990 | Elk Grove, California |
Dallas Humber (born approximately 1990, Elk Grove, California) led the inner core of the Terrorgram Collective from approximately July 2022 until her arrest on September 5, 2024, describing her own role as guiding "disaffected young white men through the end of the radicalization process." She was arrested by the FBI alongside co-leader Matthew Robert Allison, charged under case number United States v. Humber in the Eastern District of California, pleaded guilty to all 15 counts on August 8, 2025, and was sentenced to 360 months (30 years) in federal prison by U.S. District Judge Dena Coggins on December 19, 2025, with a lifetime supervised release term.1 Attorney General Pamela Bondi's DOJ announced the sentence as a landmark in the prosecution of transnational online terrorist networks.
Leadership of the Inner Collective
Humber assumed leadership of Terrorgram's inner operational circle in July 2022 following the May 2022 arrest of co-founder Pavol Beňadik in Slovakia. Under her direction, the inner collective produced The Hard Reset: A Terrorgram Production (261 pp., July 2022), the network's most operationally specific publication.
Humber's operational approach went beyond publishing. She maintained direct personal contact with individuals she identified as candidates for violence, directing them through the radicalization pipeline she described in her own terms. Raw Story reported in March 2025 that a government filing opposing bail for Allison described an October 23, 2022 secret chat in which Humber told Allison she "had direct messages with a Terrorgram user who was planning to commit a racially motivated school shooting."2 One month later, on November 25, 2022, Gabriel Rodrigues Castiglioni carried out the 2022 Aracruz School Shootings, killing three teachers and a 12-year-old student and wounding twelve. The government's sentencing memorandum lists "G.C." among seven people who plotted or committed attacks "inspired and guided by her leadership," and says it would file under seal the "Saint cards" she created to commemorate the shootings by J.K. and G.C., "whom she considers 'symbolically [her] kids.'"3
Prosecutors also alleged that after her arrest in September 2024 and while held in pretrial detention, Humber continued attempting to communicate with and groom potential attackers from within the detention facility. This post-arrest conduct was noted in sentencing proceedings.
Federal Indictment: Count Breakdown
The 37-page indictment, filed September 5, 2024 and unsealed September 9, 2024, charged Humber and Allison jointly on all 15 counts. The counts, as described in DOJ press releases and confirmed by public docket records for case 2:24-cr-00257, were:
Count 1: Conspiracy. Counts 2-5: Four counts of soliciting hate crimes (targeting individuals on the basis of race, religion, national origin, sexual orientation, and gender identity). Counts 6-8: Three counts of soliciting the murder of federal officials. Counts 9-11: Three counts of doxing federal officials (publishing private identifying information with intent to threaten). Count 12: One count of threatening communications (interstate). Counts 13-14: Two counts of distributing bombmaking instructions and information relating to destructive devices. Count 15: Conspiracy to provide material support to terrorists, under 18 U.S.C. § 2339A.
The material support count (Count 15) was the most legally significant: 18 U.S.C. § 2339A applies to providing material support "knowing or intending" that it will be used in connection with specific terrorism offenses. Its companion statute, § 2339B, is restricted to designated Foreign Terrorist Organizations and cannot reach purely domestic actors. The decision to charge under 2339A rather than 2339B reflected both the domestic nature of Humber and Allison's activities and the fact that Terrorgram had not yet received a formal FTO designation (only the subsequent SDGT designation in January 2025). Lawfare analysts described this as a significant, if not entirely novel, use of the provision against an online white-supremacist content operation.4
Combined maximum exposure across all 15 counts was 220 years.
Specific Conduct Cited by Prosecutors
The indictment and subsequent DOJ press releases described specific conduct beyond general propaganda operation:
Infrastructure incitement: On approximately December 26, 2022, Humber posted images of electrical substation transformer components with the notation "for educational purposes only of course." On or about January 20, 2023, following the Randolph County, North Carolina EnergyUnited substation shooting of January 17, 2023 (which caused approximately $250,000 in damage), Humber posted a link to a news article about the attack and stated: "It seems as though this avenue of attack, an incredibly effective one at that, has really caught on. I like to think that all our hard work in detailing its effectiveness and showing our community how easy it is not only to do but to get away with, has helped encourage this." Prosecutors presented this post as evidence that she actively encouraged the replication of infrastructure attacks.5
Brazil pre-attack contact: ProPublica and FRONTLINE reported that after the Aracruz attack Humber posted to a Terrorgram channel a ZIP file of information on it (17 photographs, four videos) and wrote that the assailant would get a "SLAP ON THE WRIST" because of his age.6 At the sentencing, prosecutor Christopher J. Perras told the court she "was responsible for inciting" the Bratislava shooting, the Turkey stabbing "and a school shooting in Aracruz, Brazil that left teachers and children dead."7
Wisconsin murder-for-hire plot: Among the seven attacks attributed to Humber by DOJ, one involved a Wisconsin plot to murder two individuals as part of a broader scheme to assassinate a federal official. The specific targets and co-conspirators in that plot were not publicly identified in DOJ press releases.
Arrest and Conviction
The FBI arrested Humber on September 5, 2024, in a coordinated operation. She and Allison were charged in the 15-count federal indictment described above. The prosecution was handled jointly by the Civil Rights Division of DOJ, the National Security Division of DOJ, and the U.S. Attorney's Office for the Eastern District of California.
Humber's change-of-plea hearing was set for August 8, 2025; she entered guilty pleas to all 15 counts at that hearing. On December 17, 2025, Judge Coggins sentenced her to 30 years (360 months) in federal prison plus lifetime supervised release. The 30-year sentence is the longest imposed on any Terrorgram Collective member in any jurisdiction and exceeded even the 20 years later given to co-founder Matthew Althorpe by Canada's Ontario Superior Court in March 2026.1
Footnotes
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U.S. Department of Justice, OPA. "Leader of Transnational Terrorist Group Sentenced to 30 Years in Prison for Soliciting Hate Crimes and Murder, and Conspiring to Provide Material Support to Terrorists." December 19, 2025. https://www.justice.gov/opa/pr/leader-transnational-terrorist-group-sentenced-30-years-prison-soliciting-hate-crimes-and; U.S. Department of Justice, USAO-EDCA. Sentencing press release. December 19, 2025. https://www.justice.gov/usao-edca/pr/leader-transnational-terrorist-group-sentenced-30-years-prison-soliciting-hate-crimes ↩︎
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"Terrorgram: Exporting Terrorism" (Raw Investigates), Raw Story, March 7, 2025. https://www.rawstory.com/raw-investigates/terrorgram-terrorism/ ↩︎
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United States v. Humber, No. 2:24-cr-00257 (E.D. Cal.), ECF 90, "Formal PSR Objections and Sentencing Memorandum" by the United States, November 26, 2025. https://storage.courtlistener.com/recap/gov.uscourts.caed.452335/gov.uscourts.caed.452335.90.0.pdf ↩︎
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U.S. Department of Justice, OPA. "Leaders of Transnational Terrorist Group Charged with Soliciting Hate Crimes, Soliciting the Murder of Federal Officials, and Conspiring to Provide Material Support to Terrorists." September 9, 2024. https://www.justice.gov/archives/opa/pr/leaders-transnational-terrorist-group-charged-soliciting-hate-crimes-soliciting-murder; Lawfare. "Why the Terrorgram Collective Designation Matters." January 2025. https://www.lawfaremedia.org/article/why-the-terrorgram-collective-designation-matters ↩︎
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Fox 8 / WGHP. "'Terrorgram' leaders Dallas Humber, Matthew Allison referenced North Carolina EnergyUnited substation shooting, court documents show." September 2024. https://myfox8.com/news/storylines/power-grid-attack/indicted-terrorgram-neo-nazi-cited-randolph-county-substation-attack-court-documents-show-this-avenue-of-attack-has-really-caught-on/ ↩︎
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"The Rise and Fall of Terrorgram: Inside a Global Online Hate Network," ProPublica and PBS FRONTLINE, 2025. https://www.propublica.org/article/rise-and-fall-terrorgram-inside-global-online-hate-network-frontline-telegram ↩︎
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United States v. Humber, No. 2:24-cr-00257 (E.D. Cal.), ECF 111, Transcript of Judgment and Sentencing, December 17, 2025, pp. 30-31. https://storage.courtlistener.com/recap/gov.uscourts.caed.452335/gov.uscourts.caed.452335.111.0.pdf ↩︎