Providence Rag by Bruce DeSilva

Providence Rag finds Liam Mulligan, an investigative reporter at a dying Rhode Island newspaper, at an ethical crossroads. The youngest serial killer in U.S. history was supposed to be released from prison on a technicality at age 21, but for years, the authorities have been fabricating new charges to keep him locked up. Mulligan knows that if authorities can get away with framing the killer, they could do the same thing to anybody. But he also knows the killer is much too dangerous to be set free. The dilemma pits Mulligan and his colleagues at the paper against one another in a high-stakes struggle over which matters most--protecting public safety or reporting the truth. And in the end, it embroils the entire state in an angry confrontation over where justice truly lies.Providence Rag is the third novel in Bruce DeSilva’s Edgar Award-winning Mulligan series—and the first to be inspired by a true story. 
from the website: http://brucedesilva.com/