RedactedNarrative: Prior to launching operator attached two seats to the bench of the boat to better fish from.  While fishing on vessel 1, one seat became loose and caused passenger to fall into water. The subsequent roll of the boat then caused the operator to be thrown in the water as well. The operator did not know how to swim.  The passenger was able to drag him to shore.  Once it was shallow enough to stand the operator attempted to stand but immediately collapsed.  He was unable to be resuscitated. Passenger was taken to the hospital for further psychological evaluation but did not suffer any injury.  Operator was found to have Marijauna in his system.