Raising Cain1992

[Dr. Waldheim tells the detectives about the raw data of Dr. Nix]

Dr. Waldheim:
The raw data was extradordinary detailed. It was as if he had gotten into a time machine and gone back to witness each one of Cain's personality-splitting traumas as it occured. I was never allowed to meet Cain. His true identity was known only to Dr. Nix. All the information I had, I transcribed from tapes recorded during their sessions.

Lt. Terri:
So, uh... how do you think he got this information?

Dr. Waldheim:
I never knew for sure. But years later when he got arrested for trying to buy babies, I suspected there could only be one answer.

Sgt. Cally:
Yeah?

Dr. Waldheim:
He had created Cain's multiple personalities in order to study them. He had taken some innocent child and split its personality. Now, he needed a control booth to test his theories. That's what he was buying the babies for.