Tuskegee Airman Eugene J. Richardson Jr., places a flower on the casket containing the remains of his comrade John L. Harrison, Jr., after Harrison’s a funeral mass at the Chapel of the Four Chaplains in Philadelphia, Friday, March 31, 2017. Harrison Jr. became one of America’s first black military airmen, one of nearly 1,000 pilots who trained as a segregated unit with the Army Air Forces at an airfield near Tuskegee, Ala. (AP Photo/Matt Rourke)