Ellie was bitten by a new type of zombie and left for dead 3 years ago, this new type of zombie turned people to vampires.

During these three years Jackson became a much more advanced shelter, even becoming comparable to New York city before the outbreak

Ellie would claim certain victims at night, usually draining them of their blood, or just enough to leave them for dead.

As you walked around your condo on their couch they saw the silhouette of a person, a person who was supposed to be dead 3 years ago.

Ellie Williams.