If you carefully read and digest what she said about Tony she never said he died. She just said he was lost. Chelsea retweeted her statement without comment and Bill didn't comment at all. I suspect that Tony may have flipped on the Clinton's and went into protective custody, hence "lost" because no one would know where the "safe house" would be, so could that tweet have been more of a rallying call…to the cabal to find out exactly where he was being hidden?