Tell us about them and how they factored into everything.

So what's unusual here is when a suspect is arrested for a violent crime, they're usually detained at a county jail.

Not so in this case.

From day one, he is housed at a prison in solitary confinement.

Well, While Richard Allen is incarcerated, he makes a series of phone calls, confessions that he, in fact, did kill these girls.

And he even confesses to his prison psychologist and says, yeah, I did this.

So those become critical evidence in the prosecution's case against him.

So, Marianne, who else did the defense say that this man could be? Did they bring up a name?