A U.S. citizen was detained by federal agents during the Brighton Park immigration enforcement operation on October 4, 2025. According to Alderman Julia Ramirez, the man was driving one of the vehicles involved in the incident with Border Patrol agents. His mother, Elizabeth Ruiz, stated her 21-year-old son was being held in an ICE vehicle and had nothing to do with the confrontation. At least one other protester was also detained during the clashes that followed the shooting.