Robert K. Lewis. Untold Damage (2013) 312 pp. [tpo]
Publishers description: A gritty mystery of loss and redemption on the San Francisco streets.... Estranged from his wife and daughter, former undercover cop Mark Mallen has spent the last four years in a haze of heroin. When his best friend from the academy, Eric Russ, is murdered, an address found in his pocket points to Mallen as the prime suspect. As the police turn up the heat and Russs survivors ask him to come up with some answers, Mallen sets out to serve justice to the real killer. But first, hell have to get clean and face the low-life thugs who want him dead. Surviving drive-by shootings and beat downs, Mallen discovers the motives behind a string of vengeful murders. But turning a life around is hard work for a junkie. Bruised, alone, and written off by nearly everyone, can Mallen keep clean and get back into his daughters life?
Setting: San Francisco