The suspect in the June assassination of Minnesota's house speaker and her husband, and the attempted murder of a state senator and his wife, pleaded not guilty to numerous charges in federal court on Thursday,

It's still unclear whether accused assassin's attorney plans to pursue a mental health defense now that his not guilty plea has been made.

Vance Boelter, the man accused of shooting to death a Minnesota lawmaker and her husband and attempting to murder another and his wife, pleaded not guilty on Thursday morning