[spokeshave]

so what weapon(s) did the shooter use....anyone know...or hazard a guess...?

[bitterohiogunclinger]

One was an FN five - seven. http://www.remtek.com/arms/fn/57/
I suspect that it will be targeted by the anti gun crowd and banned shortly.
From the manufacturers web site:

The Five-seveN® fires the SS190 5.7x28mm ball round. This projectile will perforate any individual protection on today's battlefield including the PASGT kevlar helmet, 48 layers of kevlar body armor and the CRISAT target (titanium and kevlar).

The other weapon was reportedly a revolver, but I've not seen reliable details on that one yet.

[Madam Theophilus]

Yes, they were not military issued, but legally purchased and registered by Hassan. Check out Fox News.

[1066AD]

FnH 5.7mm