The 25-year-old’s alleged actions in the days after the attack suggest he was not exactly a criminal mastermind. The U.S. Attorney’s Office said Council conducted a series of suspicious internet searches, for phrases like “SECGOV hack,” “telegram swap,” “how can I know for sure if I am being investigated by the FBI,” and “What are the signs you are under investigation by law enforcement or the FBI even if you have not been contacted by them.”
A person of the group chat simply reported it. There is no way for them to somehow monitor that chat.