Y is for Yesterday by Sue Grafton

Kinsey is hired by the parents of Fritz McCabe to find out who's blackmailing them with a videotape of an assault that Fritz committed years ago. Fritz was actually just released from prison after serving ten years for a murder he committed while in high school. The assault and crime that he was convicted for involve the same set of people, so Kinsey finds herself really looking at both events, since they are interrelated. On a more personal front, Kinsey is on edge and constantly on guard, worried that killer Ned Lowe is after her. In the last book in the series, Ned succeeded in evading the authorities and is still on the run. In Y is for Yesterday, the reader goes between the current events happening in 1989 and those that occurred ten years earlier in 1979 with all the high school characters, including Fritz. While I really enjoyed the present story--following Kinsey as she investigates and gaining insight into her personal life--I found the flashback storyline too leisurely-paced for my liking.