The Bridge (Brody Law #1)
Carol Ericson

Under the Golden Gate, Elise Duran refused to be a serial killer's next victim. She was the first of the abducted to survive. And Detective Sean Brody was there to make sure a second chance wouldn't be necessary.
As the elusive murderer sends them messages, both personal and gruesome, the point becomes clear: no one can escape death. But Sean's presence can't be any stronger as he shadows Elise while on the job—and off it—proving she couldn't have asked for a better protector. Though beneath his cool exterior Sean hides a troublesome secret. One that's absolutely to die for…