Hmmm, Do all of the crimes happen near an establishment that is "closed" due to unusual circumstances?
Any other clues that could give a better 'vision' of the "Perp"(s) ? Perhaps he/she/they does not operate alone?
It might be a crime-spree duo frustrated by their situation, moving under cover of the food festival 'guise to find victims who stand in their way..
Did the initial crime happen to occur in New Jersey? Just wondering....