Prior to his career, he studied at the University of Iowa in 1968 and made his statements.
He became known by its directors and screenwriters work on the Star Trek feature films Star Trek II: The Wrath of Khan and Star Trek VI: The Undiscovered Country. Also on the screenplay for Star Trek IV: The Voyage Home, he was involved.
He also directed the films The Day After - The Day After ( The Day After ) and Company Business. He is also the author of several Sherlock Holmes pastiches and screenwriter of the film version of one of these books (The seven-per-cent-solution/Kein coke for Sherlock Holmes).
- With Barry Jay Kaplan: Black Orchid. The Dial Press, New York City, USA in 1977. German by Rainer Bosch: Black Orchid, Roman. As Knaur Paperback, Munich 1979, ISBN 3-426-00647-2.