When the FBI arrested Edward “Jake” Lang on Jan. 16 for his alleged role in the U.S. Capitol attack, court documents show agents had followed a seemingly straightforward trail from his public social media to collect evidence. “THIS IS ME,” Lang wrote over one video that showed an angry mob confronting police officers outside the Capitol. The same post showed him trashing a police riot shield.

The government charged Lang with committing assault and other crimes, but the account of his activities spelled out in court papers doesn’t mention how the 25-year-old spent the 10 days between the riots and his capture: recruiting militia members to take up arms against the incoming Biden administration by way of an invitation-only group on the messaging app Telegram.

Read more at ProPublica.