The Reckless - David Putnam

"Bruno Johnson believes so passionately in justice that he'll lie, cheat, and steal to achieve it-and he'll pulverize anybody who gets in his way..." -Booklist
Bruno Johnson, a young and inexperienced LA County Deputy Sheriff, is trying to balance his life as the single father of a four-year-old daughter and his responsibilities as a cop in the Violent Crimes Unit. When he and his impetuous partner Ned Kiefer are put on loan to the FBI to help out with a "special problem," Bruno finds himself in a real bind.
The FBI hands Bruno and Ned a case that the Bureau prefers not to touch-a group of teenage criminals that are being run by a nefarious criminal known as the Darkman. Bruno discovers the identity of the Darkman and is stunned to realize that he is the perpetrator from a lingering unsolved case-a triple homicide that continues to haunt Bruno.
The problem is how to stop the juvenile criminals without killing kids, and at the same time, avoid being killed by the kids-or by the Darkman-and keep his reckless partner Ned under control.
Perfect for fans of Michael Connelly and Robert Crais