Gone for Good J. Schaffhausen

 Annalisa Vega is a Chicago cop, the daughter of a now retired Chicago cop, and the ex-wife of yet another Chicago cop. Years earlier, a serial killer terrorized the people of the city by torturing and murdering women. He was never caught. Now an amateur sleuth group has renewed interest in the case--and caused the killer to resurface. And he has his sights on Annalisa. It's quite the page-turner.