STANTON, N.D. A judge has ordered a man accused of killing a North Dakota sheriff's deputy to undergo a mental health examination to determine if he is criminally responsible.Ian Cramer, 42, faces more than a dozen charges, including homicide, for a December crime spree. It ended when he allegedly killed Mercer County Deputy Paul Martin. Ian Cramer is the son of North Dakota Sen. Kevin Cramer.Investigators said Ian Cramer slammed into a squad c…