In Martyrs to the Unspeakable, James Douglass tells of four Americans who challenged the established violence of the U.S.

What he wants readers to take away from his research on the assassinations is an appreciation for what could have been.

NEW YORK (WABC) -- New details were revealed Tuesday in the investigation into the death of Malcolm X from a man who said he witnessed the assassination. Moustafa Hasan has not spoken out since the ...