It’s not unheard of for state and federal prosecutors to both pursue criminal cases for the same offense, especially in high-profile matters.

What to know about man suspected of shooting two Minnesota lawmakers and their spouses, resulting in one couple dying.

When law enforcement searched the abandoned Buick, a handwritten letter directed to the FBI, read that “Dr. Vance Luther Boelter” was “the shooter at large in Minnesota involved in the 2 shootings the morning of Saturday, June 15th,” according to a criminal complaint.