The suspect accused of assassinating a Minnesota lawmaker and shooting another this weekend drove to the homes of at least four state politicians as part of a planned killing spree, federal authorities said on Monday.

The man suspected of killing one Minnesota lawmaker and wounding another is now charged with murder after police arrested him Sunday near his home following a nearly two-day search.

Vance and Jenny Boelter own a home in Green Isle, Minn., in Sibley County, which is about an hour’s drive southwest of the Twin Cities. Onamia, where Jenny Boelter was pulled over, is about 125 miles north of the couple’s home.

Minnesota State Rep. Melissa Hortman, State Sen. John Hoffman and their spouses were all shot early Saturday in targeted attacks.

Republicans and Democrats on Capitol Hill were at each other‘s throats. By Saturday, they were joining to decry political violence and seek more security. The middle-of-the-night killing in Minnesota of a top Democratic state lawmaker and the shooting of a colleague—allegedly by a suspect posing as a police officer who had a list of other elected officials—jolted Capitol Hill,

According to the website for his company Praetorian Guard Security Services, Boelter is listed as director of security patrols.