EAST ROCKAWAY - Charges have been dropped in a deadly boating accident in East Rockaway Inlet.Janusz Sowa was boating with Stanlislaw Nawrocki earlier this month when Nawrocki fell in the water and drowned, authorities say.Sowa was arrested for boating while intoxicated when he drove his friend's boat back to shore. Now, prosecutors say autopsy results show no evidence he was responsible for his friend's death.BWI charges have been dropped.Body of missing boater found; shipmate charged with BWI