RedactedNarrative: Vessel 1 stopped with motor idling while Operator was on the phone.  Vessel 1 was struck from behind by Vessel 2 on the starboard side stern.  Vessel 2 travelled up onto the stern of Vessel 1 causing it to take on water and ultimately sink.
  
  Vessel 1 Operator went into the water.  Vessel 1 was fully submerged and was resting on the bottom of the lake, upside down prior to being turned over the removed from the water.
  Vessel 1 Operator was injured in the neck area during the course of the impact.