Gretchen Swinn

Prosecutors disagreed with Gretchen, saying the debate over shaken baby science was irrelevant.

They said they'd always argued Nikki was a victim of blunt force trauma.

Just a few hours into that first day of the 2018 hearing, Gretchen told the judge about the missing CAT scans of Nikki's head.

Critical evidence missing for 15 years.

Evidence never presented at Robert's trial.

During a break in the proceedings, Gretchen got an answer.

The clerk went to check.

She walked down to the basement and a locked closet.

She turned a key, opened the door and saw them gathering dust.

The missing evidence was there, including those long-lost CAT scans of Nikki's head, taken shortly after she arrived at the hospital, evidence that had been missing for 15 years.

That court clerk is still there.

We found her in the hallway of the Palestine courthouse.

Where did you find it, the scans?

Behind a shelf, the discovery brought the hearing to a halt.

Finding out what those scans revealed would take Gretchen longer than she expected.

She had to find a radiologist to analyze them and write a report.

The scans revealed extraordinary information.

A snapshot of Nikki's head just after she got to the hospital.

According to the radiologist, the scans contradicted the medical examiner's conclusion that Nikki had suffered multiple blows.

Gretchen says the scans prove injuries the medical examiners saw on Nikki's head during the autopsy were really the result of doctors trying to keep Nikki alive.