Suppose a mass shooter loves Burger King Whoppers, and eats them daily. Did consuming those questionable calories contribute to his/her/they/them/its violent actions? Should Burger King be subject to "civil consequences" for his/her/they/them/its having "consumed" those Whoppers daily?

Suppose a mass shooter loves Burger King Whoppers, and eats them daily. Did consuming those questionable calories contribute to his/her/they/them/its violent actions? Should Burger King be subject to "civil consequences" for his/her/they/them/its having "consumed" those Whoppers?