An odd assessment by the Chicago Tribune:
Gossip site TMZ.com, owned by Time Warner, was out in front with Jackson news and digital-era pipelines spread the word, as has happened before with other major celebrity news stories. But it was old media stalwarts that did the heavy lifting, with giants such as The Associated Press and the Web site of the L.A. Times, sister paper of the Chicago Tribune, reporting the fastest, most credible information on the emergency call for paramedics and ultimately his death.
In other words, TMZ broke the story. Got it? (Channeling Chris Krewson.)