UPDATE 7:15pm: KUT News has spoken with William Greer, who says he is fine, after a pair of explosions near the finish line of the Boston Marathon.
He and his sighted guide, Peter Sagal, finished with a time of about 4 hours and 4 minutes. The explosions went off about 5 minutes later.
Greer said, from his vantage point, it wasn't clear at first just what was happening, but when multiple emergency vehicles started speeding toward the sound of the explosions, it became clear that something serious had happened.
UPDATE: Peter Sagal tells All Things Considered that he and William Greer are safe, following two explosions near the finish line of the Boston Marathon. Sagal says the pair had just finished the marathon and were making their way through the finish chute when they heard two explosions in quick succession. Marathon staff then told them and other runners to leave the area as quick as possible.
Original Story: Today, thousands will run in one of the country’s oldest and best-known road races: the Boston Marathon.
Among them will be a 43 year-old Austinite named William Greer. And he'll have a special guest along with him that might be familiar to listeners to weekend public radio.