The resolved Venn diagram is as follows:

This one has some tricky wordplay to resolve to work out what belongs where...
The bottom-most ellipse is perhaps easiest to resolve: MASSACRE - since this alludes to the historical event, the Boston Massacre, in which many died.
(At least, that's the connection I made - @caPNCApn in their answer points out that a 'BOSTON AREA' could also be a 'MASS. ACRE', since the city of Boston is in the state of Massachusetts (commonly abbreviated to Mass.) and an acre is a unit of area...)
The top-right ellipse clues STRESSED, because 'EIP' and 'TRAT' are DESSERTS (i.e. PIE and TART) spelled backwards!
Finally, the top-left ellipse clues REMAINED, a synonym of 'stayed', further clued here by inserting the US state MAINE into the word RED, since being 'in the red' means being in debt.