What evidence do benjamin and sarah abbot offer as proof that martha carrier is a witch? in what ways is this evidence subjective?

Benjamin and Sarah Abbot accused Martha Carrier being a witch because Benjamin fell gravely ill after his argument with Martha over a land property. In Sarah's testimony, she also claimed that her husband's illness was not the only thing that Martha had caused. She said Benjamin's cattle strangely died without a natural reason. They used these reasons as proof that Martha was a witch. However, their evidence was subjective because they had no physical evidence to prove. Their accusation was merely from the fact that Benjamin fell ill after he argued with Martha.  

city commissioner and director of the cia.

51% were unhappy, i think .   ; )