Due to the graphic nature of these killer's crimes, listener discretion is advised.

This episode includes graphic discussions of violence, murder, torture, assault, and animal

cruelty that some people may find upsetting and offensive.

We advise extreme caution for children under 13.

Natalia Ilchenko woke with a start.

She peered out of the window.

The sky was still dark and the birds weren't yet making a sound.

But something was wrong.

She just couldn't figure out what.

Then it hit her.

Her home in the Ukrainian city of Mipropetrovsk was quiet, too quiet.

As she shuffled into the hallway, she realized why.

Her adult daughter, Yakaterina, didn't come home last night.

Yakaterina had invited a friend over for dinner last night and offered to walk her home.

Although she was independent, she was very responsible.

She would have let her mother know if something had happened.

Trying to stay calm, Natalia checked her cell phone for any messages.

There were none.

Getting more worried, she stepped into her shoes and threw a coat on over her pajamas

before walking outside.

Out in the street, she froze.

There were three women huddled around a dark, crumpled shape a few feet away.

...