WCVB Assistant Chief Engineer Chris DeThomas explains from the sidelines of the Boston Marathon how his team comes together to broadcast the marathon from Boston to the fans.

Sarah Bouffard and her two best friends are training to run their first Boston Marathon together, and they are raising money for the organization Good Sports.

It was a terrifying diagnosis. But one New Hampshire man didn't just defy the odds, he's taking a victory lap all the way to Boylston Street.