Three days before police say he murdered an Idaho family, Joseph Duncan bragged online about an encrypted, tell-all journal that wouldn’t be broken into for decades. He figured technology would catch up in 30 years, “and then the world will know who I really was, and what I really did, and what I really thought,†he wrote May 13. Evidence seized at Duncan’s home last year for another case suggests he may have been keeping such a journal. At least one compact disc and a portion of his hard drive were encrypted well enough that one of the region’s top computer forensic specialists couldn’t access it…
