Alaskan teen Denali Brehmer is charged with murder in connection with the death of 19-year-old Cynthia Hoffman. Cynthia was allegedly lured into the Alaskan wilderness under the guise of playing a game, duct-taped, shot in the head and then pushed into a river. Brehmer allegedly concocted the plot to get $9 million from a man she had met online.

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According to Timothy Hoffman, Cynthia’s father, Cynthia had told him that Denali was her best friend. So when Cynthia didn’t keep in touch with him the day she was killed, Timothy reached out to Brehmer looking for his daughter. He says at first, she acted like a worried friend – but he claims he soon realized she was lying to him.

WATCH: Dad Shares Alleged Motive For Teens Charged With Daughter’s Murder
 

In the video above from an exclusive interview with Dr. Phil airing Friday, Timothy claims that Brehmer lied to him and the police, in an effort to throw them off in their search for Cynthia. Hear what he claims she told them.
 
On Friday, Timothy reveals more details about his daughter’s death, and what it was like learning she had been killed. Check here to see where you can watch.