Clayton Manley is an attorney with the firm of Michaelson and Mitchell in Los Angeles. In his first murder case his client was convicted. The judge in the case was Walter Montgomery who was highly critical of Manley's performance. On appeal, a new trial was ordered due to ineffective counsel. Manley then filed a civil suit against Judge Montgomery for defamation, but the suit was dismissed. When Montgomery was murdered, Manley briefly became a suspect, but he appeared to have a solid alibi. In addition, as soon as the DNA evidence appeared to implicate another suspect, the LAPD detectives on the case lost interest in Manley.
After Harry Bosch helped Mickey Haller get charges against the other suspect dismissed, Bosch began to look at other possible suspects, including Manley. After a lot of digging, Bosch was finally able to connect Manley with an unidentified woman who did dirty work for the law firm. As Bosch closed in, the woman threw Manley off the roof of his high rise office building.