RedactedNarrative: Unit 1 and Unit 2 were on plane riding parallel to each other. The two PWC`s were back and forth moving in front of one another trying to "splash" each other with water. Unit 2 moved in front of Unit 1 from the port side (left) to the starboard side (right), then jerking the PWC turning left (port side) to cause a spray of water which hit the operator of Unit 1 throwing him from the PWC. Simultaneously when Unit 2 had turned left (to port) the PWC`s collided. Unit 1 struck Unit 2 at a 30 degree angle. Unit 2 had dipped down to the left "port side" while Unit 1 came up towards the top striking the gas cap on Unit 2 with the hull of Unit 1 damaging the steering column and the bow striking the operator of Unit 2. Operator of Unit2 died as a result of the accident from a traumatic injury to the abdomen.