Stacked to Death: A Jamie Brodie Mystery - The Jamie Brodie Mysteries, #7

Library work-study student Austin Sharp upset a lot of people. When Jamie Brodie finds Austin dead, strangled to death in the library stacks, the police have plenty of suspects. When another library work-study student is found strangled, the focus of the investigation shifts - both students were from the same hometown. Then a third student is found dead. A serial killer is on the loose, and the police send in detectives from the elite Homicide Special unit.
And their favorite suspect is Jamie.