[bootless]

That style of "1" is European, as is the date style - or military. Let's not forget a left-hander. Perhaps a member of the "elite" (ha) Republican Guard from Iraq who got kicked out of the military and the country for being left-handed, i.e., unclean. I would be very surprised if the perp was domestic.

[Focault's Pendulum]

. Let's not forget a left-hander

A left handed person might leave minute palm marks from the ink as they traverse from left to right. Take it from someone who knows.