I am hearing via twitter it was a woman and she fell, but the park is not confirming anything other then a woman has died. I will never ride a rollercoaster again.
As we were heading up the first incline, my sister's friend Jessica commented that she was glad that the ride had the safety bars that came down over the shoulders and pushed on hers...and it came loose. We were at the top of the ramp, so there wasn't any way she could get off, so my sister grabbed her from the side and my friend and I grabbed her from behind and held on all the way through the first set of barrel rolls. As we headed up the second incline, we managed to lock the safety bar down for the second run through the rolls.
That was twenty years ago, and I haven't ridden a roller coaster since.