RedactedNarrative: July 22, 2013 I Officer were on water patrol when dispatch advised us that there was a vessel sunk at the dock at Sunset Marina.  We arrived on scene at 1823 hours and observed Tow Boat US salvaging FL 9961 PE.  FL 9961 PE is a 2011 Dorado.  Two subjects had gone off shore fishing in Key West and had left their vessel tied to the dock at Sunset Marina.  Upon their return they found it sunk.  Officer and I interviewed the owners and several people who had observed the vessel sunk.  We took witness statements and then went to Robbies Marina on Stock Island where Tow Boat US had taken the vessel to have the engine "pickled".  We were unable to determine the cause of the accident.
  
  July 25, 2013 I went and interviewed the Tow Boat operator, who salvaged the vessel.  He stated that the vessel did not have the deck scupper plugs in when he dove it.  He did state that the main drain plug was in.  It was stated that the bilge pump was not operational in witness statement.  
  
  It was determined that the vessel took on water through the deck scuppers and that combined with no working bilge pump caused it to sink.
NameOfBodyOfWater: WATERS OF STATE
NearestCityTown: KEY WEST