RedactedNarrative: I, Officer along with Officer were dispatched this boating incident at approximately 8:00 PM on Sunday, 12/11/2016.   Dispatch advised us that the boating accident had already occurred at approximately 10:00 AM that morning.  I immediately made contact by telephone with the individual who was the registered owner of the vessel in attempt to interview him that afternoon. He claimed to be unavailable to meet that night but due to poor cell phone connection I was unable to make plans with him. 
  
  Officer and I met with Operator on Thursday, 12/15/2016.  In interviewing Operator I asked him about his experience. Operator stated that the vessel he was operating on 12/11/2016, that sank at the Mayport Jetties, was the first vessel he had ever owned. He also stated that it was the first vessel he had ever operated and he had owned it for about a year. He claimed to operate it on the water about four times a month. I asked him if he had taken any courses or had any education on boating and he explained that his friend showed him how to drive his boat. I asked the condition of the water when he first operated that morning in comparison to a few hours later when the boat sank. He explained it had become much more rough as the day passed.
  
  I asked Operator to explain to me what had happened and he told me rough water came over the stern and swamped the boat. I drew a picture of a vessel on a piece of paper and asked him to show me where each individual was standing when it happened and where he had the anchor. Through this I discovered that the vessel was anchored on the starboard gunwale. It also revealed that only one other individual had been on the vessel during the incident. The other two individuals had been fishing on the rocks for a while before the boat took on water. Once the water came into the boat and started to sink, occupant jumped into the water and swam to the jetties. I asked if they had been wearing life jackets and Operator explained that when the boat started to go down they all put them on. Officer explained to Operator and his sister that if the vessel resurfaced and was reported, Operator would be responsible for removing it. 
  
  On 12/16/2016, Officer and I met with the individual who rescued Operator and witnessed the vessel sinking. He explained the water as being extremely rough, and even worse where Operator was anchored due to the current. 
  
  When good sam reached the location of Operator's vessel only the bow was exposed and operator was standing on it. As soon as operator boarded good sam vessel Operator's vessel sank completely underwater. I asked if the individuals had been wearing life vests and he confirmed that they had been. He explained that when he arrived only Operator was on the sinking vessel and the other three individuals were spread out on the jetties.