HELENA, Mont. — They were newlyweds, but she was having second thoughts about the 8-day-old marriage, court documents say. The couple drove the short distance from their Kalispell home to Glacier National Park, where they got into an argument. He grabbed her by the arm, but she pulled away and shoved him face-first off a cliff to his death.

Federal prosecutors have given their version of what happened to Cody Lee Johnson, 25, two months after his body was found in an area of the park so steep and rugged that a helicopter had to be used in the recovery.

Jordan Linn Graham, 22, appeared Monday in federal court in Missoula on a second-degree murder charge in Johnson’s July 7 death. Her attorney, public defender Andrew Nelson, declined to comment.

Johnson’s family and friends had called for an investigation since the body was recovered July 12 below the Loop Trail near the sheer cliff drops of the park’s popular Going to the Sun Road.

Johnson loved her and was excited for their marriage after a two-year courtship, but his relatives suspected that Graham didn’t exactly reciprocate, family friend Tracey Maness said. She was aloof, didn’t want to spend time with his family, and clammed up when she did, Maness said.