For decades, Gary Allen Srery moved across borders, changed names,

and left unspeakable violence and heartache in his wake.

In the conclusion episode- the trail of a predator that lead directly to Calgary—and the secrets buried deep within the Foothills, would finally come to reveal themselves.

Part 1: The Book of Gary Allen Srery — When Science Didn't Forget

Four young women.

Four lives brutally interrupted.

Nearly five decades of unanswered questions.

Then, science came knocking...

As investigators revisit four forgotten cold cases in Calgary, DNA begins to reveal a chilling connection — and finally gives four women the voice they were denied in life.

*With source files from:

RCMP-GRC Alberta

CTV National

Canadian Press

Radio-Canada

In the summer of 2010, Lyle and Marie McCann set out on a road trip from Alberta to British Columbia to visit their daughter. They never made it.

Their burned-out motorhome was discovered near Edson, Alberta — but there was no sign of the elderly couple.

What followed was a massive investigation, a suspect with a disturbing criminal history, years of courtroom battles, and a family desperate for answers.

But even after a conviction, one haunting question remained:

Where are Lyle and Marie McCann?

And their story wouldn't end in the courtroom. Their disappearance would eventually inspire a proposed change to Canadian law — one that could affect how no-body murder cases are handled for generations to come.

With files from:

CanadianPress

CBC

CrimeStoppers

CTV Edmonton - David Ewasuk

Edmonton Journal

Edmonton Sun

Music:

Music licensed through Soundstripe.

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