Vance Boelter is accused of posing as a police officer and fatally shooting former Democratic House Speaker Melissa Hortman and her husband, Mark, in their home early Saturday in the northern Minneapolis suburbs. Authorities say he also shot Sen. John Hoffman, a Democrat, and his wife, Yvette, at their home in a nearby neighborhood.

After a 43-hour search, Vance Boelter was arrested in rural Sibley County and charged with two counts of murder and two counts of attempted murder.

The man accused of shooting two Minnesota lawmakers and their spouses -- two fatally -- is now in federal custody on murder charges that could involve the death penalty.