[Billy frowns, reaching forward to touch the side of Major Wests head gently, brushing his fingers lightly through the little girls hair. It doesn't really strike him at the time that this is a very "Pennyish" gesture, rather than one that he would necessarily make.]

A survivor.

[He remembers their first ever conversation, and feels a pang of something unsettling in his stomach.]

One of the ones you expected to do their duty?