RedactedNarrative: The Victim and his son were operating Vessel 1, with the parent instructing the son in operation of the vessel.  As Vessel 1 slowed down, almost to a stop, the weight of the occupants on one side of Vessel 1 caused the vessel to list to the side, causing both passengers to fall overboard.  The Victim’s son was able to climb back on board Vessel 1, however, the Victim was not able to do so due to he fact that he began having an asthma attack at this time.  A witness riding on another vessel retrieved an asthma inhaler for the Victim, then assisted in trying to get the Victim to shore.  The Victim then went limp and slid out of his PFD; the witness and the Victim’s son attempted to hold the Victim’s head out of the water until medics arrived with a rescue boat.  The PFD worn by the Victim appeared to be the correct size with no apparent damage.  The Victim was declared deceased at the hospital early the following day (8/6).