RedactedNarrative: Vessel #2 stopped abruptly near vessel #1.  As vessel #2 stopped vessel #1 tried splashing vessel #2 and clipped the back of vessel #2.  
  
  The front gel-coat of vessel #1 was damaged exposing the fiberglass and vessel #1 snapped off the plug from vessel #2 in the collision.  
  
  This than caused vessel #2 to sink as water came in the PWC through the plug hole.  Vessel #2 was almost completely submerged before a pump was able to clear out the water OF the PWC.