Vessel 1 was traveling southwest bound in the southwest part of the lake at a very high rate of speed.  Vessel 2 was also traveling southwest bound in the southwest part of the lake but at a very minimal speed.  The operator of Vessel 1 stated that he was heading back to his dock at a high rate of speed and did not see Vessel 2 when Vessel 1 rear ended Vessel 2.  Vessel 1 made contact with Vessel 2 at the left rear, traveled over the corner of Vessel 2 until Vessel 2 capsized.  The occupants of Vessel 2 were thrown off the vessel when Vessel 2 capsized.  The operator of Vessel 1 admitting to consuming alcohol but didn't appear intoxicated.  The occupants of both vessels stated no injuries.
Amery