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

This episode includes discussions of murder, elder abuse, and assault that some people may find offensive.

We advise extreme caution for children under 13.

Cincinnati, 1933.

It was the hottest day in July,

but a cherubic, blonde, eight-year-old boy bounced eagerly through the

door of his home on Coleraine Avenue.

Trailed by several of his friends.

Oscar was eager to show off his favorite possessions to the other boys.

Oscar brought out his bebe-gun and collection of knives.

The other boys stared in awe, knowing their mothers would scream if they saw them around such dangerous toys.

But Oscar's mother was different. Like Oscar, she had a few special things she liked to show off to visitors.

The silver dinner wear, the antique furniture, the pool table in the basement.

There was one item in the house that both Oscar and his mother insisted on bringing out for every guest to admire.

It sat on the mantle in a place of honor.

Oscar stretched to his tippy toes to reach the mantle.

Carefully, he wrapped his little hands around an urn and lifted it down.

Oscar unscrewed the urns lid and tipped it forward, showing his friends what was inside.

Ernst Kooler, he was once a respected businessman, but soon after meeting Oscar's mother, he became very sick.

Now he was nothing but Ash, stored in a shabby urn on Anna Marie Hahn's mantle,

a mantle that she inherited from him,

along with everything else he owned.

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