The fight for racial equality came at a profound cost. Martin Luther King Jr. rose above division to become the defining voice for non-violent justice during one of the most turbulent eras in American history. To some, his influence was seen as a threat- an opposition that culminated in his tragic assassination in 1968 at the hands of an ex-convict. Today, many continue to question what lay beneath the surface, pointing to declassified documents and historical records that suggest a deeper story- ultimately led to the silencing of one of the 20th century's most powerful voices.