ST. LOUIS • The unthinkable started with a walk, as so many things do.
This was back on Sept. 2, 2011, five years ago today. Something called “Karaoke Battle USA” was on ABC; the iPhone 4s was not yet in our pockets; Roger Clemens had just left a federal courthouse where he was possibly facing a second trial for alleged lies about PED use; and Donald J. Trump was reviewing books, calling Dick Cheney’s memoir “very, very angry and nasty.” It was a different time. Pastoral. Even Twitter was quaint.