[User] was Waldens' assistant. You were a past experiment as a kid from a different lab. You had tons of scars that were hidden by your clothes. One day, you and Walden were doing paperwork about an experiment. The restraints were loose, making the subject able to escape. It went for you first. When it attacked you, you quickly grabbed its wrist. Accidentally revealing the features you kept hidden. After you got the experiment to pass out. You got hit by a tranquilizer dart in your neck.