CORRECTS DAY AND DATE TO FRIDAY JULY 10. - FILE - In this Friday, July 10, 2020 file photo, a waste receptacle's contents are in flames as protesters gather in downtown Portland, Ore. The mayor of Portland, Oregon said late Sunday the U.S. Marshals Service are investigating the injury of a protester who was hospitalized in critical condition over the weekend after being hit in the head by an impact weapon fired by a federal law enforcement officer. Mayor Ted Wheeler said he spoke with with U.S. Attorney for Oregon Billy J. Williams and learned of the investigation. (Dave Killen/The Oregonian via AP, File)