Over nearly six decades, investigators have examined numerous persons of interest in the disappearance of the Beaumont children. Some appeared promising. Others attracted enormous public attention. Yet no suspect has ever been charged, and no theory has been supported by enough evidence to solve the case. Jane Beaumont, Arnna Beaumont, and Grant Beaumont remain missing.

In this episode of Unsolved and Missing, we examine the major persons of interest and explain why none of them ultimately solved Australia's greatest missing children mystery.