RedactedNarrative: On Sunday, April 25, 2021 at 1750 hours MCSO dispatch advised of an unknown trouble at Lake Pleasant Regional Park. The initial report was there were people who fell off a watercraft, possibly in the area of Scorpion Bay, Lake Pleasant Regional Park.
  
  We were on board patrol watercraft LP39 at the time in the area of Desert Tortoise. MCSO Dispatch was able to get coordinates from the 911 call at 1751 hours which placed the caller just north of Roadrunner/Dead Man''s Island, Lake Pleasant (033.85660, -112.28029). I immediately operated LP39 towards that area and came upon numerous individuals in the water near the coordinates and a pontoon boat several hundred yards north of the coordinates. I observed three groups of people in the water spreading north for approximately 50-75 yards. The two groups with the most amount of people were to the south, and relatively close together, and there appeared to be a single adult furthest north, closer to the pontoon boat. No other watercraft were observed in the immediate area.
  
  I decided to maneuver LP39 towards the two groups with the most people that were in close proximity in order to help as many people as quickly as possible. I also believed the pontoon boat would be able to assist with the adult furthest north while we recovered the two groups furthest south. At this time I was not able to determine who in which group had personal floatation devices (PFD''s) on. I positioned LP39 with the south most group of people on the starboard (right) side of the watercraft which positioned LP39 in between the two larger groups of people. 
  
  Deputy1 began pulling people in the south group out of the water, starting with two young children which I now observed had PFD''s on. At this time I noted the group furthest south (currently being rescued) had 2 adults and 2 juveniles in it, one adult did not have a PFD on. While Deputy1 was pulling the south group out of the water, I threw a floatation device to the group to the south and threw a Type IV throwable and life vest to the next group just to the north of us. One of the floatation devices landed approximately 10 feet away from the group to the north and at this time I observed there were two Juveniles with PFD''s on and an adult male which appeared to be struggling to stay above water.
  
  Deputy1 was able to get three of the four individuals in the first group on board but the male in the PFD, decided to stay in the water and swim to the next group. Once Subject1 was clear of LP39''s propellers, I turned back on the engines (turned off during first rescue for safety) and navigated LP39 around towards the next group. Upon turning LP39 around, I only observed the two juveniles and Subject1 swimming toward them. I no longer observed the male I previously observed struggling to stay a float (who I observed as a white male with bald head). LP39 was positioned with this group on the Port (left) side of the watercraft and again the engines were turned off for safety reasons. While Deputy1 assisted this group I grabbed a water logged Type IV throwable and threw it towards the adult furthest north, who was still approximately 30 yards away. The Type IV landed approximately 10 yards short of the adult (who did not appear to have a PFD on) and the pontoon boat did not appear to be assisting with the rescue efforts as it was still a distance away.
  
  Deputy1 was able to get the two children in the second group on board while Subject1, again refused to get out of the water in an attempt to assist with the rest of the rescue. At this time the male I observed struggling to stay above water was no where to be seen and the decision was made to go assist the last person I observed in the water, the one furthest north. I maneuvered LP39 toward the last male who did not have a PFD on but was able to retrieve the Type IV throwable I threw towards him earl...  According to a news media report, the victim and four kids were being towed on a raft behind the pontoon.  The subjects fell off and all on board departed the pontoon to recover them.  One person who was on the raft was recovered deceased.