He’s charged in the slaying of Rep. Melissa Hortman and her husband, and the shooting of Sen. John Hoffman and his wife.

The man charged with killing Minnesota House Speaker Emerita Melissa Hortman and her husband, and wounding state Sen. John Hoffman and his wife, pleaded not guilty during his federal arraignment hearing on Thursday morning in Minneapolis.

Vance Boelter, the suspected assassin accused of gunning down two Minnesota lawmakers and their spouses, killing one couple, is expected to plead not guilty during his arraignment in federal court