Hi there Nilbert!
This document/cartoon is a<span> secondary source because it is most likely something someone drew after whatever event that took place and was not by someone involved in the event.
A primary source is a source created by the person/people involved in a historical event. This includes things like:
</span><span>artifacts
</span><span>documents
</span>diaries
<span>manuscripts
</span>etc...
A secondary source is one that was created by somebody that was not involved in a historical event and are generally things like articles and textbooks.
-Your friend, <span>ASIAX </span><span> </span><span>Frequent Answerer</span>
Answer:
Gatsby is killed because Tom Buchanan told Mr. Wilson that Jay Gatsby had killed Myrtle even though Daisy Buchanan was the one behind the wheel when Myrtle was struck. Therefore, Mr. Wilson believes that Gatsby killed his wife Myrtle Wilson.
I would describe the tone of the story by saying it's a wild and uncertain atmosphere and also dark and destructive.