Private First-Class E. Denys was a Galactic Federation Trooper in Metroid Prime 2: Echoes. Denys was the last of the known Troopers to die on Aether. The trooper was one of those in Force Two, sent to set up a base unknowingly near a Splinter Hive. It is unknown who or what Denys' killer was, although the Logbook entry seems to imply that the trooper may not have had the opportunity to identify his attacker. It is possible that it was a War Wasp, which had likely instantly killed him by lethal stinger blast, as the Logbook entry and Denys's position after death suggests he or she was looking into a hole leading into a room which, when Samus explores it, proves to contain War Wasps.
"I'm the only one left. Managed to get out of the hive, but when I got to the ship, everyone was gone...dead. I'm heading for that alien building we saw earlier. Maybe someone can help me there... Wait, something's moving down there. Hello...?"