Void Moon

As best I can tell, this is the only book by Michael Connelly featuring this protagonist, Cassie Black. Cassie went to prison 5 years ago for manslaughter--not that she actually killed anyone--and is now out on parole, working at Hollywood Porsche and making a life for herself. But when she finds out that the family who adopted her daughter, after being born to Cassie in prison, is moving out of the country, Cassie throws it all away to find a way to keep her daughter near. And that means not just another score, but one big enough so that she and her daughter can disappear.
She contacts her former middleman, Leo, and he sets her after a whale who has been winning big in Las Vegas. Unfortunately, the heist has to go down at the same casino where Cassie's former partner and lover--and Cassie's father--was caught and died. Was it just the bad alignment of the celestial bodies as Leo claims, or was there something more humanly sinister at work on the night Max died. When Cassie pulls off the heist, she finds the money the mark was winning at baccarat, and a whole lot more--too much, in fact. Now she knows she's in trouble, but that's not the worst part. The casino owner has sent psychopathic killer Jack Karch to find her and bring back the money; he will take out everyone in his path without a second thought. And Cassie will have to use every trick in her repertoire to come out of this alive.  As always, Connelly creates vivid, three-dimensional characters and a twisty fast-paced plot to make this an engrossing read.