RedactedNarrative: At approximately 1714 hrs on June 14, 2014 it was reported that there was  an unaccounted for swimmer @ Scales Bend Point, otherwise known as Diving Rock. V1 was drifting about 30 yds off shore when 4-5 individuals jumped off the pontoon & started swimming toward diving rock.  All individuals were going to jump off diving rock once they got to shore.  Almost immediately 2 subjects began to struggle and V1 was able to assist 1 female individual back into the boat.  When they went to retrieve the other struggling individual he had already gone under the water & couldn't be found. None of the individuals were wearing a life jacket.