I was dispatched to a call in the area 9236 Lake Conroe Dr reference boating incident.  According to report, a male had fallen overboard and was hanging onto the vessel. The vessel was in operation and traveling in a circular motion.  I arrived on scene and observed multiple EMS personnel on shore with subject, no care in progress; subject showing no vital signs. According to the written statements given by each witness the subject was outside the vessel while it was traveling in a circular motion.  Subject1 and Subject2 arrived in the vicinity of the vessel, subject1 by boat and Subject2 by jet ski, and observed the subject floating face down in the water.  Subject2 approached the subject and attempted to secure him, asking Subject1 if he had a rope in order to do so. Subject1 gave him a rope and then helped tow both Subject2 and the subject to the southern shoreline.  at this time Subject2 began to administer CPR to the subject and did so until EMS personnel arrived on scene. 
According to Subject2 he had observed the subject launching his vessel from the resort boat ramp and believed he could identify the vehicle.  Judge arrived on scene was advised of subjects information and ordered and autopsy to determine the cause of death. 
The number one cause of death in the opinion of Dr as listed in the autopsy report is drowning, with possible contributing factors being as follows: cardio vascular disease. The manner of death is listed as accident. There was also a blood alcohol level of 0.16

It is assumed the victim suffered a heart problem, and fell overboard.  Alcohol, position on the boat, and the heart problem caused the accident.
Willis