RedactedNarrative: At approximately 7:00pm, a vessel was traveling south in Dog River pulling three persons on a tube.  The vessel crossed a boat wake from another vessel traveling north in Dog River causing the tube to pull to the side of the river.  
  
  As the tube approached the side of the river it struck a pier.  The three persons on the tube attempted to get off of the tube prior to impact, one male and female was successful but the other male struck the pier with the tube.  
  
  All three were transported to University Hospital.  One male suffered a dislocated shoulder, the female suffered a back injury, and the other male suffered life-threatening injuries.  The male with life-threatening injuries was pronounced deceased upon arrival to the hospital.  PFDs were used.  The vessel was occupied by six other people.