yeah, no one can really know except for the few people involved- both sides of the story seemed a little coached- i liked the CM lady who said it was terrifying to watch the car careening through the crowd- you were on a f***ing street! thats the point of cars on a street. however, i could totally see that lady who drove the minivan freaking out and tapping a rider or two- she doesn't seem to be the most emotionally balanced of people.
however, it is our role as cyclists, and the original point of CM, to take the high road and let people know we are out there, but do it peacefully. here in SD there have been a few instances of CMers harrassing and acting like idiots. but smashing a rear window out? c'mon.