RedactedNarrative: On February 23, 2018, Operator left Cypress Garden boat launch in an 11 foot pirogue (vessel 1) on Wallace Lake in Caddo Parish.  Operator left between 4:30 - 5:00 p.m.  Vessel 1 was powered by a hand tiller Motorguide trolling motor, and was not registered.  Between 8:30 and 9:00 p.m. when Operator failed to return his girlfriend contacted the authorities.  At approximately 9:00 p.m. vessel 1 was located approximately 150 yards from Cypress Garden boat launch.  Vessel 1 was completely vertical in 10 feet of water with 10 - 12 inches of the bow sticking out of the water.  A backpack, that was identified as Operator's, was found attached to vessel 1.  No PFD's were found in vessel 1 or in the area.  There was no visible damage to the vessel.  Operator's deceased body was located in 5 - 7 feet of water on March 2, 2018.  It was found approximately 40 yards from where vessel 1 was found.  A glass pipe, commonly used for smoking illegal drugs, was found on Operator.  I believe the contributing factors in this incident were 1.  Operator Inexperience 2.  Operator Inattention 3.  Unknown.  According to several of Operator's friends, Operator was not an experienced boater.  Toxicology and exact cause of death are pending the autopsy results.