Rogue Lawyer by John Grisham (Sebastian Rudd #1)

I'm not a typical lawyer. I don't maintain a pretty office filled with mahogany and leather. I don't belong to a big firm, prestigious or otherwise. I don't do good works through the bar association. I'm a lone gunman, a rogue who fights bad systems and hates injustice . .
Sebastian Rudd takes the cases no one else wants: the drug-addled punk accused of murdering two little girls; a crime lord on death row; a homeowner who shot at a SWAT team.
But the ArchSwanger case may be the one that breaks him: Swanger is prime suspect in the abduction and presumed murder of 21-year-old Jiliana Kemp. When Swanger asks Sebastian to represent him, he lets Sebastian in on a terrible secret . . . one that will threaten everything Sebastian holds dear.