RedactedNarrative: On 04/12/2016 at approximately 1400 hours a boat fire was reported at Elm Hill Marina on J dock slip 28.  When I arrived on scene at approximately 1430 hours I saw the boat fire was being put out by Metro Fire Department.  I discovered that the boat was empty when it caught fire and no injuries were reported.  Upon talking to the owner he said that he had left that morning and that the boat was cleaned that day.  I talked with cleaner and she informed me that she did not notice anything unusual and that she had cleaned the boat as normal with vinegar, water, and a magic eraser sponge.  She was on the boat from 0900-1300 hours that day.  She had left the TV on in the cabin of the boat just as she had found it when she arrived that morning.  First responders stated that the fire seemed to have started on the fly bridge area of the J28 boat.  Boats at dock J26 and J30 also sustained damage as well as the dock itself.