If that's the case, the problem must be with the leadership in the PD and the DA's office there. Are the DA and Police Chief/Sheriff leftists?
They can't make an arrest becuase it's too dangerous since they don't have red flag laws, but red flag laws would make it safer to arrest the guy?
That doesn't make sense...
Sounds like you either need a new Sheriff and DA or it was legal self defense...
ETA:
I looked into it a little closer and it sounds like the authorities there are leftists who aren't doing anything about it in order to get people riled up for politcal agendas...
Not to mention the state of MN already has red flag laws on the books. Signed into law by Tampon Tim...