Dallas Humber

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 2:24-cr-00257 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. Court documents indicate she had communicated in October 2022 with a Telegram user planning a racially motivated school attack in Brazil, one month before Gabriel Castiglioni carried out the Aracruz school shootings on November 25, 2022, killing four students and wounding eleven. DOJ prosecutors attributed the Aracruz attack to her guidance as one of seven attacks or plots "inspired or guided by" her leadership.¹

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.²

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.³

Brazil pre-attack contact: In October 2022, Humber communicated via Telegram with a user who stated he was planning a racially motivated school shooting in Brazil. One month later, on November 25, 2022, Gabriel Castiglioni (16) attacked two schools in Aracruz, Brazil, killing four students and wounding eleven, wearing a swastika patch. DOJ prosecutors attributed the Aracruz attack to Humber's guidance as one of seven attacks or plots "inspired or guided by" her leadership.

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 19, 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