Air Force Maj. Gen. L. Scott Rice, center, adjutant general of the Massachusetts National Guard, talks to Army military policemen before the start of the 2015 Boston Marathon in Hopkinton, Mass., April 20, 2015. About 500 Massachusetts Guardsmen assisted local authorities with security for the event. Air Force Maj. Gen. L. Scott Rice, center, adjutant general of the Massachusetts National Guard, talks to Army military policemen before the start of the 2015 Boston Marathon in Hopkinton, Mass., April 20, 2015. About 500 Massachusetts Guardsmen assisted local authorities with security for the event. SHARE: Download: Full Size (2.31 MB) Tags: Photo Essays Credit: VIRIN: 305159-Z-DDL05-126.jpg Photo Gallery