RedactedNarrative: According to the operator, he and his brother (victim) were fishing when his brother's line became entangled under the water.  He stated his brother was trying to free his line when his seat broke, tossing him backwards out of V1; subsequently causing the starboard side of V1 to go under water, filling V1 with water.  V1 swamped and ejected the operator out.  The operator was able to swim to a nearby bluff bank and once there remembers seeing his brother struggling in the water.  He yelled at him to "dog paddle" to the bank but soon lost sight of him when the current carried him around the bend.   
  
  Once on scene of the accident V1 was observed with just the bow portion sticking out of the water.  Efforts to float V1 and tow it back to the ramp were successful.  An inspection of V1 revealed the middle seat (victim's seat) was bolted to a sheet of aluminum about two feet long by one foot wide.  This sheet had been screwed to the ribs of V1.  The screws appeared to be small diameter one inch long self tapping sheet metal screws. It appeared that all the screws (6 - 10) had been pulled out of V1's ribs.  This would certainly coincide with the operator's statement and is believed to be a factor in causing the victim to be thrown overboard.   
  
  A search for the victim ensued and the body was recovered 3 days later.