Well, it worked for OJ...Our sources say Nick is delusional and believes the people who put him behind bars are engaged in a "conspiracy" against him.”
Also, his (co-inheriting) siblings telling the world that he did it and should be permanently locked up in a mental institution, and hiring a lawyer to make sure that happens , is part of a typical plot of a Hollywood thriller, where the hero battles numerous evil forces aligned against him.
Really, when it comes to Hollywood, what is true and what is fiction doesn't matter... it's all entertainment.
JMO