Complex sentence: John Gray (born in Brooklyn, New York) is an American writer, director, producer, who is currently the creator and one of the executive producers of the CBS television series "Ghost Whisperer" starring Jennifer Love Hewitt.
Split into simpler sentences: John Gray (born in Brooklyn, New York) is an American writer, director, producer. He is the creator and one of the executive producers of the CBS television series "Ghost Whisperer" starring Jennifer Love Hewitt.