From what I remember (because I am NOT rereading that nonsense), Christopher believes that an ancient Native American cult brainwashed him which caused him to hurt himself somehow. He believes that they are brainwashing children and hurting them somehow.
He subpoenaed the City of Santa Barbara to produce all sorts of records of people committed against their will for mental illness in the 1800s. This would somehow show a pattern of something that would be evidence of an ongoing something or other.
The city, quite reasonably, ignored his request. He sued the city and, after several attempts by the court to get him to make sense, his suit was dismissed.
Unlike Kevin, Ryan, Christopher is quite severely ill. You can read in the transcripts just how hard the court works to preserve his dignity and it's just heartbreaking.
In my mind, Christopher is exempt from all scorn reserved for Truthers. He is as sad a case as exists.