RedactedNarrative: According to passenger 3 they were floating and letting the kids swim.  
  
  When passenger 4 jumped off v1 into the water the straps of the pfd came unbuckled and he began struggling to stay afloat.  
  
  Passenger 2 (victim) jumped in to save passenger 4.  Passenger 3 tossed a manual inflatable pfd to the victim who was also now struggling.  The pfd was never inflated and the victim pushed passenger 4 to v1 which had begun to drift away. 
  
  The victim then went under and passenger 3 jumped in to get passenger 4 and swam back to v1.  Victim was recovered the next day (05/27/21) by search teams.
  