Massachusetts Army National Guard Spc. Brandon Teixeira provides security near the starting line as hand cyclers begin the 121st Boston Marathon in Hopkinton, Mass., April 17, 2017. Brandon is a military police officer assigned to the Massachusetts Army National Guard’s 747th Military Police Company. About 500 Massachusetts National Guard soldiers and airmen and guardsmen from 20 other states assisted law enforcement agencies. Army National Guard photo by Sgt. Michael V. Broughey