Erin Moriarty

Dr. Soulier also believed that Daniel didn't want to be this way, that he had wanted to stop his compulsive behavior.

But at some point, Daniel seemed to stop fighting his compulsions.

The horror he had once felt had morphed into something else.

Rather than being repelled and upset by what he had done, when he finally listened to those repetitive thoughts, he was actually excited about it, proud.

What does that say?

But here's the important part.

Daniel might have had strong compulsions to kill, compulsions that he struggled to control.

But Dr. Soulier concluded that Daniel was not legally insane.

What would make him insane?

What are you looking for?

Is it like a memory of does he have all the details?

Did he know what he did?

You know, does he remember doing it?

The fact that Daniel actually bragged about what he was doing and seemed to enjoy it, but also covering the bottom of his shoes with tape.

What does that say to you when you're trying to determine whether he's insane or not?

Dr. Soulier was convinced that Daniel knew what he was doing when he committed the murders.

But despite Soulier's professional assessment, Daniel's defense team was determined to plead not guilty by reason of insanity.

And they planned to prove that the medications Daniel had taken made him that way.

The drugs made me do it.

The defense called Dr. James Marikangas to testify as an expert witness.