Federal prosecutors on Tuesday are expected to a grand jury indictment against Vance Boelter, the man accused of shooting two Minnesota state lawmakers and their spouses.

The contents of a letter Vance Boelter wrote to the FBI was released Tuesday along with a search warrant and six-count indictment charging Vance Boelter with stalking and fatally shooting DFL lawmaker Melissa Hortman and her husband, Mark, at their home June 14.

A grand jury indicted the 57-year-old Tuesday after he embarked on ‘a murderous rampage targeting Minnesota’s elected officials and their families’