RedactedNarrative: On August 15, 2015 at approximately 2045 hours I responded to the Northeast River located in Cecil County, Maryland in reference to a call for service for a search and rescue involving a male who had fallen from a vessel at approximately 2035 hours. Shortly after arriving in the area I was able to reach one of the members on the vessel via cell phone. Prior to making contact with Operator he was on the phone with Cecil County Emergency Communications; he would not give them his exact location. Operator stated that they had left the area where the male had fallen from the vessel and went to Bay Boat Works Marina. I arrived at Bay Boat Works Marina at approximately 2115 hours. 
  
   Upon arriving at Bay Boat Works Marina, I asked a group of males standing on the pier who was on the vessel in question. A man identified operator stepped forward and stated “I was the operator of the vessel and this is the owner.” While stating that he pointed toward a man. I then asked “So, you were the one operating?” Operator stated “Yeah.” At that time, I observed that both Operator and Owner’s eyes were bloodshot, glassy, and dilated. I also smelled an extremely strong odor of an alcoholic beverage emanating from both of them.  I then asked Operator and Owner where they last saw the missing member of their vessel and the sequence of events that occurred from the time that they last saw him. 
  
   Operator stated that they had been on a trip from New Jersey to their present location when they began having engine trouble with one of their engines. Operator stated his role for the trip was to “run” [operate] the vessel, Victim was the engineer/mechanic, and Owner was riding on board as the owner. Operator stated that they lost one engine prior to entering the C&D Canal in Delaware, but decided to continue on one engine to their port for the night at Bay Boat Works Marina. Operator stated that he last saw Victim at “Red Point,” at the “number two red marker.” 
  
  Owner then interjected stating that he believed that it was approximately one half mile south of Bay Boat Works Marina that he last saw Victim. Owner then continued “That’s when he went down below [to the main deck] to go pee off the side and check the temperatures. I went down about five minutes after him to get ready to go into the Marina and realized something was wrong.” 
  
  Operator then added that is when they turned around and attempted to locate Victim. 
  
   Owner stated that he placed the emergency “9-1-1” call in about five minutes after they realized that Victim was missing. Later he stated that it was immediately after they realized he was missing, but approximately five minutes after they last saw him. 
  
   When I restated the sequence of events that I had just received from Operator and Owner, Operator changed his story so that he would not admit to driving the vessel. Instead he stated that he was “doing something with navigation.” However, Owner maintained that he was the person who went to the main deck and realized that Victim was no longer on the vessel, while Operator remained on the flying bridge. At that time, Operator and Owner started to become disgruntled about the fact that Sgt. and I were asking them questions rather than searching for Victim. 
  
   I then asked Operator and Owner if they had a Global Positioning System (GPS) on the vessel that had tracked their route. They both stated that they did. Operator then escorted me onto the vessel and to the flying bridge, the helm that they were operating from, to view their tracks. Upon boarding the vessel I noticed empty red solo cups, along with empty and full alcoholic beverage [beer] cans [Natural Light and Yuengling] scattered around the deck. I also noticed a case of Natural Light and various alcoholic beverage [liquor] bottles throughout the cabin through the open sliding glass door. As I went to ascend the ladder to the flying bridge, Operator explained to me that I needed to be careful because the ladder was lo