Gerald Posner
Gerald Leo Posner is an American investigative journalist and author of twelve books, including Case Closed Lee Harvey Oswald and the Assassination of JFK , which explores the John F. Kennedy assassination, and Killing the Dream James Earl Ray and the Assassination of Martin Luther King, Jr. , about the assassination of Martin Luther King, Jr. A plagiarism scandal involving his articles and books arose in 2010. In 2015, the Chicago Tribune called Posner a merciless pitbull of an investigator.
Posner was born in San Francisco, the only child of Jerry and Gloria Posner. His father was Jewish and his mother Catholic, and both were native San Franciscans. His father was a labor union official.
Source: Wikipedia