Robert Traynham sat in the back of the bus until he was 18 years old. Growing up in West Virginia, he said, he passed three whites-only schools on his way to classes each morning. He fought the Ku Klux Klan as a Black Panther, he said, and marched on Washington with the Rev. Martin Luther King Jr.
And on Saturday afternoon in Boston, bearing a sign that read “Justice for Trayvon,” the 77-year-old marched for the 17-year-old who was shot and killed a year and a half ago in Sanford, Fla.