The Silent Girl by Tess Gerritsen

Detectives Jane Rizzoli and Barry Frost investigate a near decapitation and murder of a woman on a rooftop in Chinatown. When the victim’s GPS is found with addresses of a retired detective and a martial arts academy in Chinatown, the death is soon connected to the Red Phoenix Restaurant murders nineteen years before where the cook kills a waiter, diners, and then himself.

The Red Phoenix murders soon become a curse when the disappearance of two daughters of the victims happens before and after the attack. Whether the cook committed suicide or was murdered is the question as Rizzoli and Frost reexamine the evidence from 19 years ago. Quick images of a dark thing not quite human are glimpsed first by Detective Frost moving across the roof out of the Red Phoenix building; then by Rizzoli, as she stumbles across an assassin in a nearby alley. Ancient Chinese legends, an ancestral sword, and missing girls lead to an electrifying conclusion.

Ninth in the Rizzoli and Isles series, The Silent Girl, delivers a satisfying mystery with plenty of action and suspense.  The television series Rizzoli and Isles starts season 2 on July 11 on TNT.
Website: http://www.tessgerritsen.com/