One woman is dead, and five others are hurt after a mass shooting. Minneapolis Police Chief Brian O'Hara describes the crime scene as a "warzone" at Boom Island Park. Why police need your help. Plus, one state trooper takes the stand in the deadly crash trial of Derrick Thompson. Then, state workers return to the office today. Why it might not be for long. And when will this bad air go away? Join Johnny Kahner for 4 Things To Know this Monday, June 2.

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