According to documents obtained by the Associated Press, JonBenét's older brother is suing the network for $750 million to "redress the permanent damage to his reputation resulting from defendants' false accusation that he killed his sister, JonBenét Ramsey".
In October, Burke Ramsey filed a separate $150M suit against Dr. Werner Spitz, who appeared on The Case Of giving an interview to CBS Detroit in which he said of Burke's involvement in the killing, "If you really, really use your free time to think about this case, you can not come to a different conclusion".
Burke is seeking $750m in compensatory and punitive damage, LawNewz reported. The Case of JonBenet Ramsey used new experts to examine the evidence with technology that wasn't available at the original time of the crime.
In October, Burke filed a defamation lawsuit against Dr. Werner Spitz, over his CBS interview for suggesting he is his sister's killer.
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The show in question, "The Case of: JonBenet Ramsey", aired September 18 and 19.
Now, TMZ reports that Mr. Ramsay, 29, is going after CBS as a whole, and has filed a suit in MI court against the network for $500 million in punitive damages and $250 million in compensatory damages.
A spokesperson for CBS declined to comment.
The lawsuit against Spitz claims Burke Ramsey was asleep when an "unknown assailant brutally tortured, sexually assaulted and murdered his sister".
JonBenet Ramsey was found dead in the basement of her family home in Boulder, Colorado, on Boxing Day 1996. Its parent company, CBS, owns CBS4 News. It also points out that officials in the Boulder Police Department and the Boulder County District Attorney's Office have publicly stated, on numerous occasions, that Burke Ramsey was not a suspect in his sister's murder.
There was no immediate response from CBS or Kolar.