Robert E. Crimo III walks into the courtroom during a hearing in Lake County court, Aug. 3, 2022, in Waukegan, Ill. A federal warrant unsealed Thursday, March 2, 2023, says agents found bomb-making materials at the apartment of Crimo, the alleged gunman charged with fatally shooting seven people at a Fourth of July parade in suburban Chicago last year, the Chicago Tribune reported. (AP Photo/Nam Y. Huh, Pool, File)