The Interrogation Tapes - Episode 4: Sins of the Father

The 20/20 story of the man whose wife and son died in what were first deemed horrible accidents, but suspicions around Karl Karlsen lead to an hours-long interrogation as detectives seek to unlock his family secrets.

The Interrogation Tapes was produced by ABC News Studios in partnership with 20/20.

The series is now streaming on Hulu.

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