ABC’s Juju Chang uncovers exclusive new details about California woman’s murder

FRESNO, Calif. — An all-new 20/20 reveals never-before-seen evidence in a chilling cold case that disturbed Central California for decades.

“There was literally a murderer on the loose in the Fresno area…” Juju Chang says.

ABC’s Juju Chang reports on the 1996 murder of Debbie Dorian.

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The 22-year-old was a recent Fresno State graduate when her father found her dead in her northeast Fresno apartment. It would take 23 years for authorities to find her killer.

Investigators, including Vince Zavala, never gave up.

“Even after he retired from Fresno law enforcement, he stayed on unpaid to continue to follow leads. In fact, he was there the day that they arrested Nickey Stane,” Chang said.

In Friday’s episode 20/20, you will see the moment Zavala’s hard work paid off, as he connected the dots and identified Nickey Stane.

RELATED: DNA match solves murder of California woman after almost 3 decades

Exclusive body-cam video will show you the moment police arrested him.

“Well, you’ll see Vince Zavala roll up onto this fast-food restaurant in a mall that Nickey Stane is working at, confront him, and then you see additional surveillance video of the interrogation…” Chang said.

As investigators closed in on Stane after decades, he tried one last time to throw them off.

You will hear what he said.

“It was a fascinating cat and mouse game that was going on from the very moment that Vince made contact with him all the way through the interrogations in the interrogation room…” Chang said.

RELATED: Debbie Dorian’s killer Nickey Stane sentenced

You will also meet one of Stane’s survivors. She and others were sexually assaulted by him in Visalia years after Debbie’s death.

She’s only ever been identified as Jane Doe #1, but now she’s revealing her identity.

“‘Survivor’ is exactly the right word, given how incredibly feisty she was. She had a gun pointed at her, and she told the perpetrator, ‘You’re not going to get away with this.'” Chang said.

With Stane now in prison, JuJu says Friday’s episode of 20/20 gives Debbie and the survivors a final word.

“The idea that all these people were affected by the crime and that we get a chance to remember how she lived is really a tribute to all of the storytelling that we do here at 20/20,” she said.

Chang says she was able to get in touch with Nickey Stane, but he declined to comment.

Stane is now serving his life sentence at the California Medical Facility in northern California due to his age.