In Minnesota, you can carry a gun around, concealed, if you have a permit. Why? Well, I suppose so that if you get mad at someone you can pull your gun out and shoot them.
According to wcco:
The Cook County Sheriff said the man who opened fire Thursday in a courthouse in Grand Marais got the gun from his own vehicle.
Daniel Schlienz was convicted on a sexual assault charge in Cook County Court. After the jury found him guilty of criminal sexual conduct, he left the building then came back into the courthouse and into County Attorney Timothy Scannell’s office with the loaded weapon.
He then shot a witness i his trial, the county attorney, and injured a bailiff. Fortunately, he was an incompitent marksman so no one was killed.
I do not yet know if he had a carry permit, or was using it legally, but certainly despite the best efforts of the NRA it is still not legal to carry a weapon into a courthouse.
This is obviously a matter of mental illness. What gun advocates often do not admit, however, is this: It is exactly the the intersection between lax or permissive gun laws and mental illness that facilitates this kind of event. Stricter gun regulation is needed exactly because of this intersection, not the opposite.