At first I was really dubious that this John Karr was actually involved in the murder of JonBenet Ramsey. He is a really weird guy, and seemed to want time in the spotlight. This type of guy is just as happy being infamous as opposed to famous, just as long as he is becomes well known. But the letters SBTC at the bottom of the ransom note certainly is odd. Karr signed that in yearbooks and in letters to his wife. What are the chances that two people would use that signature. Apparently the letters stand for "shall be the conqueror." Is that a well known quotation? I've never heard it before. He certainly merits further investigation.