Earlier quoted context omitted.
Who was the police officer, and what weapon was used? The only report of an officer down was erroneously attributed to someone beating him with a fire extinguisher. The latest information is that there was no fire extinguisher, but instead he suffered some kind of delayed reaction to a gas canister (fired by the police).
Where is this latest information? The articles timestamped today or yesterday still quote two officers saying he was hit in the head with a fire extinguisher. I don't see reference to your last point.
1. https://www.lawofficer.com/family-of-fallen-capitol-police-o...