Kim Yancy is a character in DEXTER as well as Dexter Early Cuts.

She was a 29-year-old woman whom lived in an apartment building owned by multimillionaire Gene Marshall, until his pyromania took control of him and he burned the entire complex to the ground killing a total of seven people.

While the Showtime series rules the incident as an accident, Early Cuts claims that Gene Marshall was mentally unfit to stand trial and thus went to a psychiatric hospital. He was later found and killed by Dexter Morgan.[1]