Erin Moriarty

possible that that could cause this kind of anger and lashing out?

But Zambor needed to convince the jurors that Daniel had intended to kill.

To put Daniel behind bars, Zambor needed to make the case to jurors that Daniel knew exactly what he was doing, and if given the chance, he'd do it again.

And if that happened, he'd be even better at it.

In the courtroom, the prosecution questioned dozens of witnesses, including friends of Chip and Claudia, Daniel's former friend, Alvaro Garibay, police officers, and psychiatrists.

One witness, a member of the Davis Police Department, helped process the crime scene.

He testified that the bloodstain patterns left behind suggested that Chip and Claudia were awake,

and had tried to defend themselves against Daniel.

These were horrific details.

Prosecutors tried to prepare Claudia and Chip's families for what they would hear in the courtroom.

Claudia's daughter, Victoria, told me that one of the most painful times for her was sitting in court watching that taped interview between FBI Special Agent Chris Campion and Daniel Marsh.

Adding to Victoria's horror was the score of friends and fans, yes, fans, who showed up to the trial to support Daniel.

The prosecution was convinced that not only did Daniel know exactly what he was doing when he killed Chip and Claudia, but the big question at trial, was Daniel in his right mind?

Was he sane when committing the murders?

Daniel's defense team intended to prove he wasn't.

And this was the man they wanted to help make that case.

I sat down with Dr. Soulier in 2018 and again in 2025.

Soulier first met Daniel a few months after his arrest.

Daniel was still regularly thinking about killing people.

He told Soulier that he had thoughts of harming his peers and the people taking care of him in Juvenile Hall.