Sons of Privilege. A Noir Mystery (en Inglés) - Mike Baron

AUTHOR MIKE BARON GRABS YOU BY THE THROAT AND PULLS YOU INTO BOOK TWO OF THE INTOXICATING BIKER SERIES. 

When a star University of Wisconsin athlete turns up dead in the water after a night of drinking, everyone calls it an accident. But his sister calls Josh Pratt. The ex-con turned PI doesn't buy the official story. And when Josh starts digging, what he uncovers is far worse than a single drowning.

Big men on college campuses are dying, one after another, and someone is leaving a calling card: a freshly painted smiley face at every scene. Josh has stumbled onto a pattern that powerful people want buried...and the closer he gets to the truth, the more dangerous life becomes for everyone around him, especially "Fig" Newton, the victim's sister, and the woman who's becoming impossible to walk away from.

Josh has ridden the road between heaven and hell before. But this time, the devil isn't chasing him-it's hunting the woman he loves.