RedactedNarrative: On 12/14/14 at approximately 8:00pm, Agents were advised that victim  had not returned from fishing that day.  Agents responded to the area, along with Lafourche Parish Sheriff water patrol officer.  At approximately 11:00 pm.friends of Victim, see attached witness statement form) found Victim's vessel (LA3204B) in Lac Delill.  Agents went to the vessel's location (N29 1.955 W 90 13.387) and did observe that the trolling motor was down, and that there was no apparent damage from any collision.  The vessel's key was in the off position, with the throttle in the neutral position.  The motor was cranked and ran fine.  The vessel was equipped with remote steering, which was in good working order. the vessel was equipped with 5 type III PFD's and  type IV PFD. Agents did not detect any alcohol or drugs in the vessel, and are not considered to be factors.  At approximately 2:20am, Victim was found in the water approximately 215 feet from where his boat was first discovered.  Agent did not see any noticeable injuries to Victim.  Victim was not wearing a PFD.  The entire area of Lac-Delill is only 2-4 feet deep. Victim was transported the Tidewater boat launch and taken into custody by the Lafourche Parsih Coroner.  She advised Agent that she would contact him later that week with the cause of death.  Victim suffered from several serious medical conditions, including heart disease and diabetes.