VESSEL 1 WAS PULLING AN OVERLOADED TUBE WHEN THE CONNECTION BETWEEN THE TOW BRIDLE & TOW ROPE FAILED, CAUSING THE PIN SECURING THE CONNECTION TO FLY BACK AND STRIKE THE VICTIM IN THE HEAD.  TUBE IS A OBRIEN SUPER SCREAMER, UNKNOWN MAKE/MODEL OF TOW ROPE & BRIDLE.  IT CAME WITH BOAT WHEN PURCHASED USED.
BASALT