Bystander kills school shooter; White House press secretary ousted after 5 days

A bystander fatally shot a school shooter, an event that may signal a shift in civilian response norms, though details on the shooter's identity and motive remain unclear. Separately, the White House press secretary was removed after only five days, indicating internal administration turmoil. The juxtaposition of these events in a single briefing suggests a volatile news cycle, but neither event has clear market implications.