It means that the article in the first post, that which originated this discussion, does not contain the information you are now claiming everyone who disagrees with you is 'dropping'.
It does not contain a criminal history on said kid. It does not contain many details at all. Yet that did little to prevent the usual 'stoopid kid got what he deserved' commentary, which I have been railing against, because it is inherently stupid, not to mention a dangerous precedent, to simply assume that because rocks were thrown the killing was justified.
This is and has been most of the thread. Anything else I can help explain?