I'm not sure it's true. For one thing, the only source for the report seems to be the Gateway Pundit. And I'm pretty sure that, if it were true, we would have heard about it long ago.

I suffered a similar injury once, which amounted to a hairline fracture of the upper zygoma. If it were a boxing match, it would have been a TKO - I was unable to do very much for several seconds. I'm not sure I could have drawn and fired a weapon, and I'm sure that if I did, it sure wouldn't have been accurately.

Onward and upward,
airforce