The Pulitzer Prize for breaking news tends to go to a massive team effort, often one in which a dozen or more reporters feed material to one, two or even three writers, who pull together the main story. Papers like The New York Times and L.A. Times used to call this the “swarm” approach to breaking news. Send a ton of reporters into the field. Make sure nothing is missed. Put your best writers on the story.

 

That’s what makes “Veteran Kills 12 in Mad Rampage on Camden Street,” Meyer Berger’s 1949 story of a mass shooting, so remarkable. The swarm was one guy: Berger....