Sue Landers is an Evolved Human with the ability of Lie Detection.
She was an office worker, prior to being killed by Sylar.
By all outward expressions, Sue is a completely stable and normal person, but because of her ability of Lie Detection she has become incredibly wary and non-trusting of the entire world. She had fled into a shell prior to her demise.
Sue Landers had the ability to detect when others were lying. She would feel a tingling sensation in her mind whenever somebody lied.