Fall
(Book)

"Detective Harriet Foster is on the case before the killer can strike again. But even with the help of her partner, Detective Vera Li, and the rest of their team, Harriet has little to go on and a lot at risk. There’s no telling who the killer’s next target is or how many will come next. To stop another murder, Harriet and her officers will have to examine what the victims had going on behind the scenes to determine who could be tangled up in this web of betrayal…and who could be out for revenge." --author's website.