See How They Hide by Allison Brennan

No matter how far you run, some pasts never let you go…

Two people were murdered—at the exact same time, in the same gruesome manner, bodies covered in the same red poppies…but on opposite sides of the country.
With Detective Kara Quinn investigating in Oregon and Special Agent Matt Costa in Virginia, the Mobile Response Team digs deep to uncover more about each victim. What is the link between the two, and why were they targeted?
Yet their search unearths more questions than answers—until they meet Riley Pierce, the only person still alive who might be able to help them find the killers.
Soon, it becomes clear this case is nothing like they’ve seen before as their investigation leads them to the hallowed grounds of Havenwood—an eerily beautiful place rooted in a terrifying past.
As more bodies turn up, all tied to the same community, Kara and Matt are desperate to piece the puzzle together before Havenwood’s leader sacrifices everything to keep her secrets buried.