Premise: Edward I. `` Ed '' Decter ( born May 19 , 1959 ) is an American film director , film producer and screenwriter . Shadowhunters ( also known as Shadowhunters : The Mortal Instruments ) is an American fantasy television series that is loosely based on The Mortal Instruments by Cassandra Clare , and developed for television by Ed Decter .
Hypothesis: Ed Decter is a novelist.
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