One Last Breath by Sarah Sutton

A popular beach town was torn apart when a teenage girl went missing. Now, one year later, after a storm rips through the area, her body is found––strangled and buried deep under the brush of a local beach. But, as the cops uncover her body, another is found––a more recent victim––and they quickly realize it’s the work of a serial killer.

FBI Agent Tara Mills, still recovering from her last case, is pulled into her second. With no leads, the FBI needs Tara’s brilliant mind to crack it. But as she delves into the depths of the popular vacation beach town, she soon realizes that no one can be trusted––and that this killer may be far more brilliant than her.
Meanwhile, Tara has decided to uncover the truth of her own past. As she battles the darkness surrounding her childhood, more victims go missing, and with her career on the line, she races against time to stop the killer before she loses it all.