Terra Newell says that when her mother, Debra, decided to leave her husband, John Meehan, “things got dangerous.” Terra became a target in John’s plan to exact revenge on Debra for ending their marriage. Instead, Terra ended John’s life in self-defense.

Known to millions as “Dirty John,” the subject of books, podcasts, and a 2018 true crime television series, Meehan was stabbed to death in 2016 after he attacked Terra with a knife, and she picked it up when he dropped it.

“When people say that I’m a hero, it means a lot to me. It’s just hard to accept that because the event was so traumatic, and I just don’t want to take credit for killing someone,” she says in the video above.

Hear more from Terra and her mother, Debra Newell, who returns to Dr. Phil to talk about her new book, “Surviving Dirty John: My True Story of Love, Lies and Murder,”

Plus, Meehan’s first wife, Tonia Bales, shares details from her 10-year marriage to “Dirty John” in an exclusive interview with Dr. Phil. She also discusses her new podcast, “The First Wife: John Meehan’s Reign of Terror,” available on Audible.

This episode of Dr. Phil,“The Untold Story of ‘Dirty John’ Meehan’s First Wife,” airs Tuesday. Check your local listing to find out where to watch.

WATCH: Former Wives Of ‘Dirty John’ Say They Share An Unusual Bond

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