A Pennsylvania boy who was 11 when he was accused of killing his father's pregnant fiancee with a shotgun will be tried as an adult in the death of both the woman and the fetus.

Jordan Brown is charged with two counts of criminal homicide in the death a year ago of 26-year-old Kenzie Marie Houk and the unborn boy in their western Pennsylvania farmhouse.

Lawrence County Judge Dominick Motto on Monday ordered the now 12-year-old boy to be tried as an adult. He could be convicted of anything from involuntary manslaughter to first-degree murder and could face up to life in prison.

A psychiatrist for the prosecution had argued the boy wasn't likely to be rehabilitated in juvenile court.