Peter Steven Fischer is an American writer and television producer, most notable for his work on Murder, She Wrote, which he co-created with Richard Levinson and William Link. He was also the executive producer of the series for the first seven seasons. He wrote 8 of the 22 episodes the first season. Fischer wrote. or co-wrote, nearly three dozen episodes of the show during its run.He also wrote 7 episodes of Columbo and at least one episode of Kojak.