RedactedNarrative: On March 20, 2015, at approximately 10:09 am, Florida Fish and Wildlife Conservation Commission (FWC) Dispatch Center received a complaint in reference to a serious boating accident in the vicinity of US Coast Guard Sector Miami, Miami Beach, in Miami-Dade County, Florida. The operator was cruising in the area of Meloy Channel when his 25 foot Christ Craft vessel (V1)rapidly turned left, traveled a few seconds and struck the seawall at US Coast Guard Sector Miami, 100 MacArthur Causeway, Miami Beach, FL 33149. Operator and his passenger suffered serious bodily injuries as a result of the accident. Both individuals were transported to Jackson Memorial Hospital's Ryder Trauma Center for treatment by Miami Beach Fire Rescue. 
   
  After reviewing all available evidence and based on the totality of circumstances, this accident was most likely caused by the operator’s inability to control his vessel at a critical moment. This situation was likely prompted by a medical condition which hindered the operator from steering his vessel back on the intended course and away from the seawall. Several witnesses, including, which had the best perspective at the time of the accident, stated that the operator and the passenger went down at approximately the same time. There is a possibility that the operator became unconscious, conceivably due to a medical condition, compelling his female companion to assist him. The vessel was traveling at high speed, as we can see in all three videos and it is described on several witnesses’ statements. Due to the high speed at which the vessel was traveling, Occupant did not have the time to simultaneously assist a probably unconscious operator, and make a course correction. Approximately 9 to 10 seconds went by from the moment that the vessel turned hard left to the time of the impact. This very short time frame is not enough for an experienced operator to recover from such situation, not to mention an inexperience person. It is very possible that at the time of the collision Occupant was providing assistance to the operator on the deck of the vessel. This explains why neither the videos nor the witnesses show or saw anyone operating the boat prior to the impact. Presently, I do not have any indication that Occupant has any significant boating experience. An experienced boater would have moved the throttles to a neutral position and then assist the operator while calling for assistance provided there was enough time to react. It is also evident that the operator was not wearing a safety lanyard or “kill switch” which is mandatory on personal water crafts (PWC) but optional on larger vessels such as this 25’ Chris Craft. The kill switch is designed to shut the engine off if the operator becomes incapacitated. This vessel was equipped with a kill switch. 
   
  Occupant was transported by Miami Beach Fire Rescue from US Coast Guard Sector Miami and admitted at Jackson Memorial Hospital's Ryder Trauma with severe head injuries (fractured left frontal bone), a pulmonary contusion and a left rib fracture. ; Operator - After suffering a collision with a seawall at US Coast Guard Sector Miami, he was transported to Jackson Memorial Hospital's Ryder Trauma Center. He suffered a severe head injury and 7 broken ribs as a result of the accident.