Not if but when Mass shootings change what it means to be a mayor in America

MONTEREY PARK, Calif. — Henry Lo waited in his living room, helicopters thrumming overhead. With little information to share and a gunman still at large, the Monterey Park mayor stayed awake overnight, fielding calls from reporters and talking to city staff until morning — time to give the first press conference. “I sat on my couch the whole night and morning, trying to just ask people what had happened,” he said. Today, across the United States, city leaders enter office with the knowledge that their towns — no matter how quiet — may at any time become the next scene…