I am only adding these posts for posterity's sake - in MN, there is an obligation to aid individuals who have been harmed and MN officers are trained to do this. Indeed, reports exist of MN officers responding to gun shot wounds (GSWs).

See my earlier posts:

[1] https://news.ycombinator.com/edit?id=12047969

[2] https://news.ycombinator.com/item?id=12048024