culpable vs red-handed

culpable

adj
  • Meriting condemnation, censure or blame, especially as something wrong, harmful or injurious; blameworthy, guilty. 

red-handed

adj
  • Showing clear evidence of guilt; in the act of wrongdoing. 

  • Deadly, bloody. 

  • With hands that are red from blood. 

How often have the words culpable and red-handed occurred in a corpus of books? (source: Google Ngram Viewer )