RedactedNarrative: On 7/4/14 at approximately 01:15 AM, Vessel 1 left the 17th Ave boat ramp with 4 POBs. The vessel traveled approximately 2 miles at approximately 15 MPH. When the operator took the vessel off plane, they noticed the passenger originally seated in the rear casting chair was no longer on the vessel. 
  
  Operator was operating the boat, subject2 was seated on the port side of the side console, subject3 was seated in the bow and subject4 was seated in the stern of the boat on a pedestal mounted casting chair. 
  
  Operator states after the Idle Speed Zone he put the boat a plane that permitted the boat to travel smoothly over the swells. Operator traveled about 2 miles south into Pensacola Bay and he stopped the boat to get ready to fish and looked back to speak to Subject4. Operator stated the chair Subject4 was seated in was tilted over toward the stern of the boat and Subject4 was missing. All three remaining occupants began searching for Subject4 and retraced their voyage back to the boat ramp but could not find Subject4. 
  
  Operator stated they left subject3 back at the boat ramp and subject2 and Operator resumed searching for Subject4 until they were directed back to the boat ramp by an FWC Officer. 
  
  Upon visual inspection of the boat, I noticed the casting chair appeared to have been added to the boat after the boat was manufactured. The deck underneath the casting chair appeared weathered and the positioning of rear casting chair placed the occupant at a high center of gravity. That combined with the boat going from idle to plane would have caused the occupant to move rearward and contribute to the deck failing beneath the casting chair. 
  
  At 1554 Hrs on 7/4/14, Subject4's body was located approximately 1/2 mile east of the Pensacola Bay Bridge.