The petition, filed this week in a Cook County Circuit court, seeks to have Cook County State's Attorney Anita Alvarez removed from the case due to her connection with the Fraternal Order of Police (FOP).

In a letter to U.S. Attorney General Loretta Lynch, Illinois AG Lisa Madigan asked the DOJ's Civil Rights Division to determine if the department's practices violate federal law.

Images surfaced of Chicago police officers viewing Burger King footage, which reportedly shows the moments before Laquan McDonald's death.