On Saturday, May 16, a group of five cavers entered Marshall's Cave in Virginia. Mike Mehta and Tony Petrilla led three inexperienced cavers. The leaders had been in Marshall's at least ten time before. They headed for the back part of the cave, intending to reach the stream. It had rained a lot recently and the cave seemed wetter than usual. At one point Petrilla stepped along a ledge and part of this gave way, sending 800-1000 lbs. of rock and mud down slope.
Mehta was below Petrilla but was not directly in the path of the rock fall. Still, they took this as a sign that the cave was more dangerous than usual, and aborted the trip.
NSS News, December 1993 (Part 2) V51N12, Page 359.
Mike Mehta, Caving Accident Report, undated, unpublished, 1 page.
No analysis has been done.