Karr's brother, Nate, said: "This whole thing is ridiculous."
http://edition.cnn.com/2006/LAW/08/17/ramsey.arrest/
My how protective the siblings are.
"Around 2001, John Karr and his family moved to California. Around that same time, Karr also began doing research for a book he wanted to write about men who commit crimes against girls, Nate Karr said. He believes the research, which included reviewing police and coroner reports about the JonBenet murder, may have been what landed his brother in trouble"
This may be why Karr knew so much about the murder.