In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: His dead body was found in the back yard of Knoxville, Tennessee, resident Fred Myers. The plane crashed over away in Hayesville, North Carolina. Link Information: As of the 2010 census, the city has a population of 178,874, Question: What is the difference in population between the city where Thornton's dead body was found and where his plane crashed.
Answer: Knoxville, Tennessee