How it unfolded 1 development · click the chart to see its coverage articlesposts

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1. 1 Nov 3

   Suspect's initial court appearance expected

   The arrested suspect's initial court appearance is expected Tuesday afternoon, following his arrest a day earlier.

   “FIRST ON FOX: The FBI arrested an Oklahoma City man early Monday suspected of sending hundreds of letters containing suspicious white powder to public officials across the country during the 2024 and 2026 election cycles, a federal law enforcement source told Fox News Digital.”

2. backgroundNov 2

   FBI arrests Oklahoma City man in letter-mailing case — The FBI's Oklahoma City field office arrested a suspect early Monday accused of sending the hundreds of white powder letters to public officials across the country, a federal law enforcement source told Fox News Digital.

3. backgroundOct 23

   FBI advisory finds no hazardous material yet in tested letters — The FBI said in an Oct. 23 advisory that no hazardous material had been identified in the suspicious substances tested at that point, though laboratory testing remained ongoing.

4. backgroundOct 15

   Letters to Senate Democrats intercepted before delivery — A letter addressed to Sen. Lisa Blunt Rochester's Delaware office was intercepted by Capitol Police, while mail addressed to Sens. Alex Padilla and Kirsten Gillibrand was intercepted by postal authorities, per AP reporting.

5. backgroundOct 15

   FBI and USPIS probe nationwide mailings to election offices — Ahead of the 2026 midterms, federal authorities investigated a new series of suspicious mailings sent to secretary of state offices and related election offices nationwide, as first reported by the Associated Press.

6. backgroundJan 1, 2024

   Similar white powder letters hit election offices in 15+ states — During the 2024 election cycle, suspicious letters sent to election offices in more than 15 states prompted evacuations and hazmat responses; some substances were later found harmless.