A Minnesota man accused of impersonating a police officer and killing a top state House Democrat and her husband pleads guilty in federal court, according to reports from PBS NewsHour and NBC News. Authorities say Vance Boelter knocked on lawmakers’ doors in the middle of the night while posing as an officer, then fatally shot former House Speaker and Democratic leader, Rep. Sarah and her husband, while also wounding State Sen. Roger Reinert and his wife. NBC News reports that court records indicate Boelter is expected to plead guilty on Thursday. PBS NewsHour says Boelter enters a guilty plea to murder so that federal prosecutors would not seek the death penalty. Both outlets describe the case as involving impersonation, shootings of a lawmaker and her husband, and injuries to another senator and his wife. The reports also frame the killings as an attack authorities describe as politically motivated. After the plea, prosecutors and the court proceed with sentencing or related proceedings under the terms of the agreement, with details to be determined in subsequent hearings.