CHICAGO, IL - AUGUST 13:  A demonstrator carries a sign remembering Heather Heyer during a protest  on August 13, 2017 in Chicago, Illinois. Heyer was killed and 19 others were injured yesterday in Charlottesville, Virginia when a car plowed into a group of activists who were preparing to march in opposition to a nearby white nationalist rally. Two police officers were also killed when a helicopter they were using to monitor the rally crashed.  (Photo by Scott Olson/Getty Images)
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