Owner's vessel was tied to slip when it was struck by another unknown vessel causing property damage.  No one was on vessel at time of accident.  Owner of damaged vessel #1 suspected it may have been a person who had a medical episode that day in the harbor.  He contacted authorities who in turn contacted this suspected individual.  Operator of vessel #2  lost consciousness while operating his vessel in the harbor and woke up and his vessel was resting on pilings to the south side slip opposite to wear he ties his vessel.   After waking up he saw the damage and concluded that it was from striking the pilings.  He doesn't remember hitting the vessel but said it could be a possibility.  His vessel had damage that would indicate he had struck vessel #1.   He had a Dr's appt at that point and left and came back to his vessel.  Later that day he was found in the water hanging onto his vessel wearing his PFD.  He was reportedly seen that day acting very strange around town.  Investigator had a hard time contacting operator #2 and the fact that he lives out of state.  He has forwarded him an accident report on 8/19/13 and as of today 9-13-13 we still have not received it.  Officer can not determine by the evidence and/or lack of witnesses if Vessel #2 struck vessel #1.  Received operator's report today 10/8/13.
South Dartmouth