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A month or so after the investigation started , McCombs informed Will Lang Jr. that he had to stop the investigation because his close friend and business partner Clay Shaw was suspected of being a conspirator in the Kennedy assassination .
 McCombs, Will Lang Jr., Clay Shaw, Kennedy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 McCombs, Will Lang Jr., Clay Shaw, Kennedy