Two Wikipedia contributors disarmed a gunman who threatened to kill himself at WikiConference to protest a policy banning editors who identify as pedophiles (Andy Newman/New York Times)

Andy Newman / New York Times:
Two Wikipedia contributors disarmed a gunman who threatened to kill himself at WikiConference to protest a policy banning editors who identify as pedophiles  —  After the man walked onto the stage at the “Wiki World's Fair” event and threatened to kill himself, witnesses said, two members of the audience jumped in to stop him.