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)FILE - In this Friday, July 10, 2020, file photo, Federal officers pull a protester into the Federal Courthouse as protesters gather in downtown Portland, Ore. The mayor of Portland, Oregon said late Sunday, July 12, 2020, 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)Umbrellas bearing the names of people killed by police were displayed at SW 3rd and Main as Portland protesters gather downtown on Friday, July 10, 2020. (Dave Killen/The Oregonian via AP)
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)