A federal prosecutor said Vance Boelter went to the homes of four politicians in a deadly rampage in Minnesota on Saturday.

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.

Minnesota authorities arrested Vance Boelter, the suspect in the assassination of Democratic state Rep. Melissa Hortman and her husband and the failed assassination attempt of Democratic state Sen. John Hoffman and his wife, on Sunday afternoon after a daylong manhunt.