Tammy and Mike Scheller’s 17-year-old daughter, Alyssa Hatcher, tried to hire two people to kill them. The high school senior allegedly stole more than $1,400 from their bank account to buy cocaine and to pay for her plot.

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Tammy and Mike say during the eight months leading up to Alyssa’s arrest, she dramatically changed her behavior.
 
In the video above from an exclusive interview with Dr. Phil airing Thursday, the parents share why they believe their daughter, with whom they were both once close, would try to have them killed.

WATCH: ‘She Hired Somebody To Kill You; They Just Didn’t Do It,’ Dr. Phil Says To Parents Of Teen
 
Do they believe their daughter is sorry for her behavior – or sorry she got caught? And, will she face decades in prison, or can she be rehabilitated? Check here to see where you can watch Thursday’s episode.