RedactedNarrative: V1 took on water or the live well pump itself was left on. The bottom of the vessel, below the floor, became flooded over the two hour period the vessel was anchored. The extreme weight of the water finally sank the boat to a point where lake water rapidly entered the vessel over the transom and then the sides, as the occupants of the vessel stood. The whole vessel rolled over and sank. Both occupants were able to swim to shore, no injuries were sustained.