Matthew Condon and Kelly Slater Regan visit the site of the former Whiskey Au Go Go nightclub in Fortitude Valley, Brisbane, where 15 innocent people lost their lives more than half a century ago. 

Condon uncovers a document that suggests the private detective who investigated the horrific attack feared for his life if his findings – that the men convicted of the crime did not act alone – were ever made public. 

And the Regan family finally confronts an allegation that's haunted them for half a century: did Stewart John Regan murder three-year-old Karlos Scott-Huie? 

Read more about this case and see photographs, videos, timelines and more at gangstersghost.com.au

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