Cold-Blooded
Fourteen years ago, high school track star Sydney Adams was gunned down in Philadelphia’s Fairmount Park. The investigation yielded useless clues, and the case went cold. But homicide detective Augustus Knox never gave up on finding Sydney’s killer. Now, retired from the police force and with only months to live, he enlists the help of private investigator Jocelyn Rush to clear the case once and for all.
Armed with little more than a theory as to who murdered Sydney, Jocelyn tries to lure a killer into the open. But unraveling the mystery means facing off against a cunning psychopath whose ruthlessness knows no bounds. When more bodies start to pile up, Jocelyn has to decide just how far she’s willing to go to catch a cold-blooded killer.
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Lisa Regan
Lisa Regan’s journey as a writer began in the quiet corners of her childhood home, where she developed a fascination for stories that linger long after the last page is turned. Born and raised in the United States, Regan’s love for crime fiction and psychological suspense runs deep. Over the years, she honed her craft with an unwavering commitment to creating characters who aren’t just caught in dark situations—but who thrive within them, testing their resilience in the most gut-wrenching ways.
PI Jocelyn Rush Series
PI Jocelyn Rush Series consists of two primary books, and includes one additional book that complement the series but is not considered mandatory reads. The current recommended reading order for the series is provided below.

