A Good Girl's Guide to Murder by Holly Jackson

This is the story of an investigation turned obsession. Pretty and popular high school senior Andie Bell was murdered by her boyfriend, Sal Singh, who then killed himself. It was all anyone could talk about. And five years later, Pip sees how the tragedy still haunts her town. Now a senior herself, Pip decides to reexamine the closed case for her final project, at first just to cast doubt on the original investigation. But soon she discovers a trail of dark secrets that might actually prove Sal innocent . . . and the line between past and present begins to blur. Someone in Fairview doesn't want Pip digging around for answers, and now her own life might be in danger. This gripping mystery novel is perfect for teens who love a good puzzle.