culprit vs destructor

culprit

noun
  • The person or thing at fault for a problem or crime. 

  • A prisoner accused but not yet tried. 

destructor

noun
  • One who destructs. 

  • A furnace or oven for the burning or carbonizing of refuse. 

  • A function that runs when an object is no longer required, used to release any resources that it was using. 

How often have the words culprit and destructor occurred in a corpus of books? (source: Google Ngram Viewer )