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

listener discretion is advised.

This episode includes discussions of murder and assault

that some people may find offensive.

We advise extreme caution for children under 13.

Convicted serial killer Henry Lee Lucas sat in a stuffy interrogation room.

A team of investigators gathered around him. They knew that Lucas had

killed dozens, maybe hundreds of times, but now he was cooperating with them, helping them close old cases.

The lead detective didn't know why Lucas was so compliant, but that wasn't his mystery to

solve.

He just needed to know he could close his homicide case, a woman

who had been murdered in her own bed. Lucas seemed amenable to taking credit, but the detective

wanted to be sure the confession was legitimate.

So he set up a little test.

The detective handed Lucas a crime scene photo and invited him to examine it.

For several long seconds, the killer studied the details in the picture, the rumpled

bedsheets, the decor, the discarded pair of glasses on the murdered woman's bedside table.

Once Lucas was finished with the photo, the detective pulled out another.

It featured a group of smiling men and women posing for the camera.

He asked Lucas if he could identify the victim.

Once again, Lucas studied the photo in tent.

Finally, he pointed at the correct woman

...