Two men charged with chemical spray assault of officer Brian Sicknick | Print this article Two men were charged with assaulting U.S. Capitol Police officer Brian Sicknick and two other officers with an unknown chemical spray as they attempted to break through a bike rack barrier on Capitol grounds, although the men were not charged with murdering Sicknick, whose cause of death has not been publicly released. Julian Elie Khater and George Pierre Tanios were charged with a host of crimes related to the Jan. 6 riot at the Capitol, including three charges of assault on a federal officer with a dangerous weapon, conspiracy to injure an officer, civil disorder, obstructing or impeding an official proceeding, physical violence on restricted grounds, violent entry and disorderly conduct, and aiding and abetting.