National Geodetic Survey crew members Roy Anderson, left, and Steve Breidenbach set up survey equipment used to measure the height of the Washington Monument. National Geodetic Survey/NOAA hide caption

itoggle caption National Geodetic Survey/NOAA

The man who set himself on fire Friday at the National Mall was John Constantino, 64, of Mount Laurel, N.J., police say. Constantino's family links the act to "a long battle with mental illness." Alex Brandon/AP hide caption

itoggle caption Alex Brandon/AP

Police investigate the scene after a man set himself ablaze on the National Mall's lawn Friday afternoon in Washington, DC. The man did not survive his injuries, according to reports. Win McNamee/Getty Images hide caption

itoggle caption Win McNamee/Getty Images