That Night in August - H.E. Sayler
When Egil Magnusson moved to his late father's place in rural South Dakota, he was looking forward to peace and quiet. Instead, he finds himself dealing with weird neighbors, old resentments, and an unsolved murder. Sixteen years ago, a high school senior died under mysterious circumstances at a party on what is now Egil’s land. Her ex-boyfriend, the only son of one of the wealthiest men in town, managed to convince a jury that she’d killed herself. Witnesses and suspects alike have moved on with their lives, but all of them know more than they told the police. And one of them knows exactly what happened to Amy Dahl that night.