Private Eugene Ellis is a soldier from a FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie pieces together his story from his captain's notes and his own recordings while searching the mall for a medical kit for Joel.
The Salon note, found in Back in a Flash, is Francis's report of the crash: their patient turned in flight, attacked the pilot, and the helicopter went down in the mall. Ellis was one of three survivors.
The Atrium note in So Close, near where Joel and Callus are hidden, explains that a group of stalkers attacked Francis and Ellis in the loading dock and bit him. He tried to kill himself, so Francis knocked him out, gave him morphine and cut off his arm above the bite.
The Generator note and the Atrium recorder, both in So Close, show him burning with fever, unable to eat and lashing out at Francis, who once walked ten miles away before coming back for him.
Following protocol, Ellis held Caulfield down while Francis shot him after he was bitten.
In The Enemy of My Enemy, the Duct recorder in an air duct passage reveals that Ellis, convinced Francis meant to shoot him, beat her to death when she reached for her gun at the sight of infected. Fleeing them tore open his stump, he could not sew it with one hand, and he died in the duct, where Ellie finds his body.
Ellie Williams
Ellie Williams is the 14-year-old girl Joel is hired to smuggle out of Boston, and your companion for most of The Last of Us Part I. She was bitten weeks earlier and never turned, so the Fireflies believe her immunity could lead to a vaccine. You play as her in the winter chapter and in the Left Behind DLC.
Regan Francis
Captain Regan Francis is the medical officer who commanded the FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. Most of the Left Behind artifacts in Colorado are her reports and recordings, which Ellie finds while hunting for supplies to save Joel.
Larry Caulfield
Chief Warrant Officer Larry Caulfield is a member of the FEDRA helicopter crew that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie learns what happened to him from Captain Regan Francis's notes.
Sean Brendon
Warrant Officer Sean Brendon is the pilot of the FEDRA helicopter that crashed at the Colorado Mountain Plaza. In Left Behind, Ellie finds his body in the wreck while searching for a medical kit, and he is named in the captain's notes.