TG--
That is properly referred to as the "smoke-and-bang show at the GK." Plenty of witnesses referred to such an event, enough that I consider it likely that it happened.
It could have been a kid playing with a large firecracker, who, when he learned that his prank, never funny, was even less funny, clammed up thereafter.
The dorsal wound to Gov. JBC's wrist is in fact a curiosity.