​Within an hour and a half early on Saturday in Minnesota, a Democratic state representative and her husband had been shot dead and another Democratic lawmaker and his wife were gravely wounded by a man who arrived at their homes disguised as a police officer.

Vance Boelter, 57, faces state and federal murder charges in the fatal shooting of Melissa Hortman, the top Democrat in the Minnesota House, and her husband, Mark, in their home in Brooklyn Park, Minnesota, on Saturday. Boelter is also charged with shooting and wounding another Democratic lawmaker, state Senator John Hoffman, and his wife Yvette, in their home in Champlin, Minnesota.