Due to the graphic nature of this killer's crimes,

listener discretion is advised.

This episode includes discussions of child abduction,

sexual assault, rape, and murder.

We advise extreme caution for children under 13.

On a mild November night in 1984,

David Penton paced around his living room with a baby in his arms.

His son, Michael, was just shy of two months old,

and he seemed to cry constantly.

David understood that sometimes,

parents simply had to let their children cry it out.

What he didn't get was how people tolerated it,

how they managed to let their babies shriek for hours

and still stay sane.

Because David couldn't handle it anymore,

he was supposed to love his son unconditionally,

but Michael was making it very hard for him.

Every time he looked down at his beet red skin

and his gaping gummy mouth,

all David felt was pure hatred.

With each piercing scream,

David rocked Michael harder and faster,

...