Dianne Hundt: Tucson's Unsolved 1985 New Year's Eve Murder

Dianne Hundt pulled the door shut behind her at 10 PM on December 31st, 1985. The latch clicked. That sound — mechanical, ordinary, the kind you don't notice — turned out to be the last her family ever heard her make.

She was sixteen years old. She had somewhere to be. She walked out into a Tucson night and never came home.

New Year's Eve, Tucson, 1985

Tucson at the end of 1985 was a sprawling desert city pressed against the Santa Catalina Mountains, the kind of place where the suburbs dissolved into open scrubland without much ceremony. The Hundt family lived at 8200 East Balfour Drive, on the east side of the city — close to where the roads start thinning out and the Sonoran desert takes over.

Dianne was a teenager on New Year's Eve. She had plans. Whatever those plans were, whoever she was supposed to meet, the night started the way thousands of other nights started for kids her age — a door, a step outside, the cool winter air of an Arizona December. Temperatures in Tucson that time of year drop into the 30s at night. The desert gets cold in a way that surprises people who've never been there — frost on the creosote, the ground hard and pale in the dark.

She was reported missing. And then the new year came.

Found in the Desert Near Reddington Pass

On the morning of January 1st, 1986, bow hunters working the desert near Reddington Pass found her body.

Reddington Pass cuts through the Rincon Mountains east of Tucson. It's remote — the kind of terrain where the nearest paved road is miles away and the only sounds at night are wind and wildlife. Her body was discovered approximately three miles from the nearest road, out in open desert, the creosote brush white with frost around her.

She had been strangled. The ligature was her own bra, still knotted at her neck. There was semen on her shirt. The ground around her body showed little sign of a struggle — no wide scatter of disturbed earth, no evidence of a fight conducted at any distance. Whatever happened to Dianne Hundt happened close.

The medical examiner's findings painted a picture of a brief, controlled, and devastating act of violence. She had been brought to that location — or led there — and she had died there, in the cold dark of a January desert, three hours east of the door she'd walked out of the night before.

The Arrest That Didn't Hold

Within weeks, Pima County investigators arrested a man named Kerry Wayne Robinson, a transient with a history that made him a credible suspect. For a moment — and it's worth sitting with that moment, the way Dianne's family must have — it looked like there was going to be an answer.

There wasn't.

DNA testing excluded Robinson entirely. His profile didn't match the biological evidence recovered from Dianne's clothing. He was released. The case went cold.

The DNA that was collected, the semen evidence that survived, belonged to someone else. Someone who had never been identified. Someone who, as far as investigators knew, had never appeared in any database they could match against.

For years, the case sat. Dianne's name stayed in a file. Her family kept knowing and not knowing at the same time — the particular cruelty of a homicide with physical evidence and no suspect.

What Genetic Genealogy Found — and Didn't

In 2021, Pima County Sheriff's Department submitted the case for genetic genealogy analysis, the same investigative method that cracked the Golden State Killer case in 2018 and has since been applied to dozens of cold homicides across the country.

The testing worked, in a sense. Investigators were able to build a DNA profile from the evidence. That profile exists right now — sitting in a database, detailed enough to potentially identify a family line, specific enough to narrow down a suspect if the right relatives are in the system.

But as of the most recent public updates, the profile hasn't produced a match to anyone who has ever been charged, investigated, or identified in connection with the case. The genealogy work is described as ongoing. Which means somewhere in the branching tree of that unknown man's family, there may be a cousin or a sibling or a child who has submitted their DNA to Ancestry or 23andMe without knowing what that spit sample might eventually surface.

The evidence is patient. It doesn't degrade the way leads do. It just waits.

Forty Years and a Door That Still Won't Close

Dianne Hundt has been dead for forty years. The man who killed her has had forty years of ordinary life — dinners, winters, the particular smell of desert air in January that he would recognize if he let himself think about it.

He is likely older now. He may have a family. He may have moved far from Tucson. He may have told no one, or he may have told someone who has been carrying that weight for decades.

88Crime, the Arizona-based tip line, has offered a $2,500 reward for information leading to an arrest in Dianne's case. It's not a large number. But reward money has never really been the point — tips come from people who've been waiting for permission to say something they already know. A name. A boast heard in a bar once. A story that didn't add up about where someone was on New Year's Eve 1985.

For readers who want to carry this story further, the Horror shop at /shop supports the kind of content that keeps cases like Dianne's from disappearing — if you've ever felt like dark true crime belongs in the cultural conversation, that's why.

The latch clicked at 10 PM on December 31st, 1985. Dianne Hundt stepped outside and the door swung shut behind her. Forty years later, that moment is still unresolved — not because the evidence doesn't exist, but because the man it points to hasn't been named yet.

If you know something about this case, contact 88Crime at 1-888-CRIME-88 or Pima County Sheriff's Department. Someone out there knows the sound of that man's voice. Someone has always known.