There is a highlight vid posted here: http://smu.scout.com/2/900888.html (pay, from a WSU local TV station)
Granted, you can't see very much at all looking at a highlight tape, but those INTs weren't tips, weren't through the hands of the WR, etc. They appear to be thrown straight to the defender. Can anyone at the game confirm?
Didn't BM take that sack a possession or two before he started throwing INTs? Maybe the rib injury had something to do with it?