Welcome Back, grab something strong and sip slowly because this case stays with you

On October 26, 2015, Lee Antoni returned home to his Calgary house after a weekend away and made a horrifying discovery: his wife, 31-year-old Amanda, lying dead at the bottom of the basement stairs in a pool of blood. The scene was so violent that responding officers called it “the bloodiest” they had ever seen.

But here’s where the case takes a strange turn. There was no sign of forced entry. No DNA from any other person. No suspect. Just an overturned chair, a shattered cell phone, a broken piggy bank embedded in Amanda’s skull—and a family left with nothing but questions.

In this deep dive, we explore the life of Amanda Antoni—the adopted daughter from Carstairs who “lit up every room she walked into”—and examine the forensic paradox that has baffled police for nearly a decade. Was it a tragic accident? A random intruder? Or does someone out there know exactly what happened on Castledale Way?

With new attention from Netflix’s Unsolved Mysteries, Amanda’s family is still fighting for answers.

If you have any information about the death of Amanda Antoni, please contact Calgary Police Service at 403-266-1234 or Crime Stoppers anonymously at 1-800-222-8477.

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