Ex-teacher and alleged kidnapper Tad Cummins had been "threatening" Amber Alert subject Elizabeth Thomas with repercussions at school before their disappearances, the teen's father said in recently released court records.

After Cummins, 50, was suspended from teaching at Culleoka Unit School in Maury County, Tennessee on Feb. 6, Elizabeth "began feeling guilty," her father, Anthony, said in a court filing obtained by ABC News.

Thomas' father alleges Cummins "played upon this guilt," according to ABC.

Cummins was suspended by the school system after he was caught with 15-year-old Thomas in his classroom Feb. 3. Thomas and the teacher weren't supposed to be in contact because they reportedly had been caught kissing in the classroom Jan. 23.

This photo shows Elizabeth Thomas and Tad Cummins in his classroom.

Cummins wasn't officially fired by the school until the day after he and Thomas disappeared March 13. Read more about how the school system responded to the incidents here.

"Moreover, evidence has surfaced that (Elizabeth) became fearful of Cummins' reaction to his suspension and her belief that he would punish her in some way for it," according to the court filing obtained by ABC.

The father alleges in the court filing that Cummins picked up Thomas from her house for a meal, "threatening her that if she did not go with him she would face repercussions at school," ABC reported. The father says he didn't know about the incidents at the time but since has learned information from various sources, including her siblings and friends.

The father claims in court records there is "a continuous pattern of grooming by Cummins" in the months prior to Elizabeth's kidnapping.

The filing says Cummins told Elizabeth, because of the kissing incident, "her future collegiate and work career was ruined, thus causing her to believe that her best option was to leave with him," according to ABC.

Thomas' father is seeking depositions for any potential witnesses who may be able to provide information about the relationship between Cummins and the teen. Anthony Thomas filed the petition Thursday.

Elizabeth "had told various siblings and/or friends that she was scared of Cummins and that she felt 'in over her head,' " the father said in the petition for depositions.

Thomas' father says Cummins also was "stalking" the teen after his suspension from school.

Cummins would frequent the fast food restaurant where Elizabeth worked, the court filing says. And the teen had, "at times hidden in the restaurant from Cummins and asked employees to lie about her presence at work, not desiring to see or speak with him, and showing fear of him," according to the court filing.

"Cummins preyed upon the child for months on end, nudging and molding her until her will to resist was conflicted and ultimately broken," according to the court filing. "She is for all purposes a victim of a masterfully manipulating predator."

The last confirmed sighting of Thomas and Cummins was March 15 at on Oklahoma City Wal-Mart near Interstate 240. The sighting was discovered on surveillance video about two weeks later.

Prior to that sighting, the last information about their whereabouts is from the day they disappeared. Thomas was seen the morning of March 13 when a friend dropped her off at Shoney's restaurant in Columbia, Tennessee. Cummins was placed in Decatur, Alabama that afternoon by the Tennessee Bureau of Investigation.

Amber Alerts remain active in Alabama and Tennessee. Cummins is wanted in Tennessee for kidnapping and having sexual contact with Thomas.

The video and images from Oklahoma showed their appearances had been altered, including darkening Cummins' hair and changing Thomas' hair color to red.

It's not clear whether Cummins may still be driving a silver Nissan Rogue with Tennessee license place 976-ZPT.

Cummins' wife, Jill, who has publicly encouraged her husband to surrender, has filed for divorce, citing irreconcilable differences that have arisen in the marriage. Thomas' father also has publiclty encouraged Cummins to surrender and pleaded for his daughter to come home.

Authorities are encouraging the public to share information about the Amber Alert with anyone they know south of the U.S. border. While investigators don't have any information placing Thomas and Cummins in Mexico, they say it's possible the two have made it that far. Mexican police have been notified about the case.

The public is asked to be on the lookout, particularly in rural or secluded areas. Hunters are asked to watch for Cummins and Thomas. Investigators are asking people to be vigilant in parking garages and lots, parks, campgrounds and other off-the-grid places.

Thomas is a white female possibly with red, strawberry or blonde hair and hazel eyes. She is 5 feet and weighs about 120 pounds. Cummins, believed to be armed with multiple guns, is a white male possibly with dark hair and brown eyes. He is six feet and about 200 pounds. They may be traveling in a silver Nissan Rogue with Tennessee tag 976-ZPT.

Anyone with information is asked to call 1-800-TBI-FIND. Anyone who sees Cummins, Thomas or the vehicle should call 911.