RedactedNarrative: Victim #1 exited the boat to swim.  Victim exhibited signs of difficulty while swimming.  Witness on boat threw a PFD type 4 to the victim.  The victim could not reach the type 4 PFD, and sank.   After searches utilizing USCG, NPS, Leelanau County Sheriff, Grand Traverse County Sheriff, Glen Arbor Fire Boat, and MSP sonar and cadaver dog, the victim was located.  The victim was recovered in 18ft of water, by LE dive team with a temperature of 73.5 degrees.