The unchecked escalation collapsed on May 1, 2024, when federal authorities unsealed an indictment charging Larson with seven counts of making interstate threats. Investigators documented multiple phone calls and online posts where Larson threatened to detonate explosives at courthouses, FBI field offices, and state government buildings.
Following his arrest, U.S. District Court proceedings quickly shifted focus to his psychological stability. Forensic evaluations concluded that Larson lacked a rational understanding of the proceedings against him, driven by persistent persecutory delusions and unmanaged developmental disorders. A federal judge formally committed him to the custody of the Attorney General for hospitalization and competency restoration treatment under 18 U.S.C. § 4241, effectively cutting off his internet access and placing him inside a secured federal medical facility.
