IndyCars race past National Mall; 1 dies in Annapolis house explosion

The first Freedom 250 Grand Prix gets underway in Washington, D.C., with IndyCar drivers racing a 1.7-mile circuit through the city ahead of the main event. Also: Officials believe an Annapolis house explosion that killed 76-year-old Linda Synowczynski and seriously injured a man was accidental. Investigators do not believe a propane company’s visit to the home caused the blast.