Columbia subject headings:
Harvard subject headings:
African American detectives--Fiction.
Cross, Alex (Fictitious character)--Fiction.
Detective and mystery fiction.
Murder--Investigation--Fiction
Murder--Washington (D.C.)--Fiction.
Police--Washington (D.C.)--Fiction
Psychological fiction.
Serial murderers--Fiction
Thrillers (Fiction)
Washington (D.C.)--Fiction
Princeton subject headings:
Cross, Alex (Fictitious character)--Fiction.
Fiction.
Murder--Investigation--Fiction.
Police--Washington (D.C.)--Fiction.
Serial murderers--Fiction.