Vance Boelter, 57, has been charged in the shootings of two Minnesota lawmakers and their spouses. The Hennepin County Attorney said Monday that her office intends to pursue first-degree murder charges against him as well.

The FBI revealed during a separate conference Monday morning that Boelter had gone to the homes of two other Minnesota lawmakers the night he killed Rep. Melissa Hortman and her husband and injured Sen.

One lawmaker and her husband were killed, and the second legislator and his wife sustained serious injuries in the shootings early Saturday. A suspect surrendered to police on Sunday.