WASHINGTON, Feb 6 (Reuters) - The U. Then, starting in at least June 2022, an FBI confidential informant started to receive encrypted messages from a user known as "Homunculus” who encouraged the informant to attack electrical substations, the complaint says. Thomas Sobocinski, the special agent in charge of the FBI's Baltimore office, said the FBI was not aware of any links between the two people arrested in the alleged Baltimore plot and attacks elsewhere on electrical infrastructure