Who originally co-authored the 'Destroyer' series of books?

"The Destroyer" is a series of paperback novels about a U.S. government operative named Remo Williams, originally by Warren Murphy and Richard Sapir. The first novel was published in 1971, although the manuscript was completed on June 25, 1963. Over 150 novels have been published. The main characters were adapted to film in "Remo Williams: The Adventure Begins" (1985).

"The Destroyer" series was initially co-authored by Warren Murphy and Richard Sapir, with each writing a portion of each book separately. In the late 1970s, the relationship between the two became tense, and Sapir withdrew. In the early 1980s, Murphy began using ghostwriters to help with the series, among them his wife Molly Cochran. In the mid-1980s, Sapir returned to participating in the series.

The series' hero is Remo Williams, a Newark cop framed for a crime and sentenced to death. His death is faked by the government so he can be trained as an assassin for CURE, a secret organization set up by President Kennedy to defend the country by working outside the law. The head of CURE is Harold W. Smith, a man selected by the President not only for his brilliant mind but also because of his integrity. Smith is a former law instructor at Yale and served in the Office of Strategic Services during World War II.

Remo's trainer and father figure is Chiun, a deadly assassin and the last Master of Sinanju. It has also emerged that Remo is the Avatar of Shiva, as prophesied in the legends of Sinanju.