RedactedNarrative: On the 29th Day July Operator left the Skull Island Boat Ramp to go Fishing. Not Far from the Ramp Operator stated that the vessel just rolled over and it felt like the transom broke. He stated that he had just looked down at the speedometer and it said he was going approx. 30mph.Upon inspection of the vessel after it had been recovered showed that the livewell switch was in the on position and could have been pumping water into the livewell and poss. the bilge causing the center of gravity of the vessel to be affected which in turn could cause the vessel to roll over when Operator took a turn while operating the vessel.