Steve Coachman, of Boston, unfurls a flag featuring a likeness of Martin Luther King Jr., Monday, April 2, 2018, before a remembrance on City Hall Plaza in Boston, for King who was assassinated 50 years ago this week. Dozens of speakers aged 5 to 91 took turns reading short passages from King's last speech during the remembrance. King originally delivered the speech in Memphis, Tennessee, on the eve of his April 4, 1968, death. (AP Photo/Steven Senne)