In case you're wondering, yes, states can prosecute federal officials if they act beyond the scope of their duties, violate federal law, or behave in an egregious or unwarranted manner. More info here: statedemocracy.law.wisc.edu/featured/202...
O'Hara says that Minneapolis police are investigating ICE's killing of a woman to see "if any state laws within the state of Minnesota have been violated"