During his trial, Ader said that he too had been kidnapped by the group holding Lindhout captive, and was forced to act as their spokesman, as he spoke some English.

In his ruling, Justice Robert Smith said Ader’s claims were "completely unbelievable,” numerous Canadian media outlets reported. Reuters has not read the ruling.

Ader faces up to life in prison. Sentencing in the case is not expected until next year.

Lindhout has said she was repeatedly sexually and physically assaulted during her captivity, and both she and Brennan have said they were tortured and starved.

In 2013, Lindhout recounted her experience in the book "A House in the Sky.”