murder vs send to the gas chamber

murder

noun
  • The act of deliberate killing of a person or other being without moral justification, especially with malice aforethought. 

  • Something terrible to endure. 

  • A group of crows; the collective noun for crows. 

  • The commission of an act which abets the commission of a crime the commission of which causes the death of a human. 

  • The crime of deliberately killing a person without moral justification. 

verb
  • To botch or mangle. 

  • To devour, ravish. 

  • To kick someone's ass or chew someone out (used to express one’s anger at somebody). 

  • To defeat decisively. 

  • To deliberately kill (a person or persons) without justification, especially with malice aforethought. 

send to the gas chamber

How often have the words murder and send to the gas chamber occurred in a corpus of books? (source: Google Ngram Viewer )