A rural Montgomery teen accused of shooting his sleeping father in the head in January now faces a charge of first-degree premeditated murder.

A Le Sueur County grand jury indicted Jonas D. Nelson, 18, who was previously charged with second-degree murder in the killing of 47-year-old Richard J. Nelson. The teen called police after the Jan. 6 shooting at a farm house and deputies arrived to find his father on the living room floor.

According to the original charges: The defendant at first told authorities that he was in an upstairs bedroom when he heard a gunshot. Upon further questioning, the teen complained about the way his father had been treating him, citing his father's religious views and saying the man had acted more like a "probation officer." 

The teen told police he "just snapped" and hadn't thought of killing his father until that night.