Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.

Paragraph: The first season ends with Jessica convicted of the murder of Peter Campbell . The announcer concludes the season by announcing that Jessica is innocent , and that one of five characters -- Burt , Chester , Jodie , Benson , or Corinne -- killed Peter Campbell . Chester later confesses to Peter 's murder and is sent to prison . He is soon released after a successful temporary insanity defense .
Question: who killed peter on the tv show soap

Chester