Crosscut by Meg Gardiner
For Evan, China Lake was a tough place to grow up. But she didn't realise just how tough until, returning to the desert military base for her high school reunion, she discovers that a disturbing number of her classmates have died young. The morning after the reunion another is found, savagely butchered. She is just the first. Someone in China Lake has a major axe to grind with the class of '91. And that includes Evan . . .