You're absolutely correct. I just looked at the files, and they don't pass the smell test. Most typewritten items from that era would have been in Courier font. And why would these items be copies, anyway, if these memos were for the guy's own personal file? They wouldn't have that run through the copy machine a zillion times aura to them in that case.
This is going to be hilarious, because every major news organization is running with this bogus story like it's a new toy on Christmas morning.
I think these documents are forgeries. If they were not, they could easily get many of the other reports signed by Killian during that time to see if the type is the same.