By Selena Hill (staff@latinospost.com) | First Posted: Sep 10, 2013 07:56 PM EDT

A Montana woman, who was apparently having second thoughts about her 8-day-old marriage, confessed that she pushed her husband face-first off a cliff in Glacier National Park.

22-year-old Jordan Linn Graham appeared Monday in federal court in Missoula on a second-degree murder charge in the death of her late husband Cody Lee Johnson, 25, reports the AP.

She reportedly pushed him off a cliff on July 7 after the two got into an argument during a hiking trip in Flathead County, Montana.  Johnson allegedly grabbed her arm and she responded by removing his hand, then pushing him in the back, causing him to fall of the precipice to his death.

She then lied about his death and told authorities he had driven off with friends, court documents said.

An FBI affidavit states that Graham was having second thoughts about having married Johnson after a two-year courtship.  On the night Johnson died, Graham told a friend that she meant to talk with Johnson about "having second thoughts about having been married" and that she wanted to talk to him about it.  Just before the couple got into a spat, she texted the friend that she was about to talk to him around 9 p.m.

"But dead serious if u don't hear from me at all again tonight, something happened," Graham wrote, according to the affidavit.

Johnson failed to show up for work the following day and was reported missing. When questioned by authorities, Graham originally told investigators that her husband was simply going for a drive with a friend, and added that she saw him get into a car that had pulled up to their home.

Two days after police questioned Graham, she told a park ranger that she found her husband's body near the park's Loop Trail. Five days later, she reportedly admitted to investigators that the two had an argument that resulted in her pushing Johnson to his death.

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