COLORADO 1982 Cold Case Solved — Arrest Shocks Community

It was the last week of September, 1982. One of those Colorado autumns that came in fast and golden. The kind of autumn that made the whole state feel like it was posing for a postcard. The Aspens had already turned along the upper ridges of Mesa County. And the air in the valley had that particular quality it only gets in the high desert at the end of summer.

 Dry and thin and faintly sweet. Carrying the smell of sage and something like wood smoke from somewhere up the canyon. Robert and Margaret Aldecoa had been planning this camping trip since July. They had talked about it through the long hot weeks of August. The two of them sitting on the back porch of their house on Ridgeline Road in Fruita, Colorado.

Watching the heat come off the Mesa and making plans. Three days at Highline Lake State Park. Just the two of them. A cooler full of food. No schedule. No alarm. Their youngest had just left for college in Fort Collins. And this was supposed to be the beginning of a new chapter. The quiet kind that people who have raised children look forward to for years.

 Without ever quite saying so out loud. Robert was 51. Margaret was 48. They had been married 26 years. They drove out of Fruita on a Friday morning with the windows down and the radio playing. Neither of them came home. Robert Aldecoa had worked for Mesa County Roads and Bridges for 19 years. He was the kind of man people described the same way every time. Steady.

Reliable. Showed up early. Stayed late. Never asked for anything he hadn’t earned. He coached Little League for 11 years. Served two terms on the Fruita City Council. And was known in the neighborhood for maintaining the nicest vegetable garden on Ridgeline Road, a long double row of tomatoes and peppers that he tended with a seriousness that his friends teased him about gently.

He was large-framed, deliberate in the way he moved and spoke, and possessed of an almost stubborn patience that his three children had inherited in varying degrees. Margaret had been a school librarian at Fruita Monument High School since 1974. She was the one people called when they needed something organized, something explained, something found.

She kept a card catalog in her head for every book in the school’s collection, and had, according to the principal at the time, never failed to locate a title a student asked for. She made tamales at Christmas using her grandmother’s recipe, and brought them to the school potluck in a ceramic dish with a blue lid that she had owned for as long as anyone could remember.

She had plans to start a reading program at the Mesa County Library in the spring. She never got the chance. The Aldacoas arrived at Highline Lake on Friday afternoon, September 24th, 1982. A ranger on duty at the entrance booth remembered checking them in at approximately 2:45 p.m. He remembered the truck, a 1979 Ford F-150 in dark blue, and he remembered Margaret asking about the best spot for watching the sunrise over the water.

He pointed them east. He watched them pull through and disappear around the bend in the road. That was the last recorded contact with either of them. By Monday morning, when Robert was expected at the Roads and Bridges office, and Margaret was expected at the school, neither had arrived. By midday Monday, the calls to their home went unanswered.

By that evening, their eldest daughter Rosemary had contacted the Mesa County Sheriff’s Office. Deputies arrived at Highline Lake on Tuesday morning. They found the campsite. The tent was still standing. The cooler was still there, latched shut with 3 days of food still inside it. The camp chairs were set out.

A book Margaret had been reading, a paperback with a torn spine, was still open on the camp table with a river stone laid on top to hold the page. The coffee percolator was on the grate above the fire ring, empty, clean, as though someone had washed it and set it to dry. The Ford F-150 was not there. Robert’s wallet was on the floor of the tent, next to his boots.

Margaret’s reading glasses were beside the book. Neither Robert nor Margaret Edaakie was anywhere at the campsite. Not in the water, not on the trails, not in the surrounding terrain after a 3-day ground search with dogs and volunteer crews from Fruita and Grand Junction. The truck was found 6 days later, parked on a dirt road off the Book Cliffs Highway, 18 miles north of the park.

The keys were in the ignition. There was no visible evidence of struggle. Deputies documented a partial boot print in the dried mud near the passenger side door, too degraded by weather to cast cleanly, but photographed and logged. They documented that the truck had been wiped down on the interior surfaces, a detail noted carefully in the original case file.

The truck had been wiped down. This was not a couple who had wandered off a trail. This was not an accident. The Mesa County Sheriff’s Office opened a homicide investigation on October 7th, 1982. Officially classifying Robert and Margaret Aldacoa as homicide victims. Though their remains had not yet been located.

The lead investigator was Detective Sergeant Alan Briggs. A 20-year veteran who had worked homicide cases throughout Western Colorado and who told his supervisor, according to internal records from that period, that this was the most deliberately staged scene he had ever encountered. Someone had wanted those bodies to disappear.

And for a long time, they did. The investigation moved on two tracks simultaneously. The way the best investigations always do. On the official track, Sergeant Briggs was building a picture of the Aldacoas’ life in Fruita. Their finances, their relationships, whether anyone had held a grievance against either of them.

Robert Aldacoa had no enemies that anyone could identify. His work at Roads and Bridges was administrative and he had no conflicts of record with any co-workers or contractors. Margaret had no disciplinary issues at the school. No disputes with parents or colleagues. Their finances were unremarkable. They had a modest savings account.

 A mortgage with 11 years remaining. Two car payments. There was no life insurance policy large enough to motivate what appeared to have happened to them. On the personal track, Rosemary Aldacoa was doing something that the official investigation couldn’t fully do. She was going through her parents’ lives with the intimacy that only a daughter has.

She was asking questions at the diner where her father ate lunch. She was talking to her mother’s friends at the school. She was reconstructing the weeks before the camping trip and looking for anything that felt different, anything that felt wrong. She found one thing. In the two weeks before the trip, her mother had seemed preoccupied.

Not frightened, preoccupied. She had mentioned to her closest friend, a woman named Barbara Hooper, that something at work had been bothering her. She hadn’t said what. Barbara had assumed it was nothing serious. Margaret was private that way. She didn’t dramatize. Sergeant Briggs had one early suspect, a man named Curtis Fairweather, 44 years old, who had a prior assault conviction from 1978, and who had been camping in the same area of Highline Lake that same weekend.

A witness had seen Fairweather’s vehicle near the park entrance on Saturday, September 25th. Briggs interviewed him three times. Fairweather had no connection to the Aldacoas that anyone could establish. His alibi for the relevant hours was incomplete. He claimed he had left the park on Saturday morning, but no one could confirm the time.

Briggs kept him as a person of interest for eight months. In the spring of 1983, Fairweather moved to Nevada. The case file notes that his departure was flagged, but that there was insufficient evidence to detain or charge him. He died in a traffic accident outside Las Vegas in 1987. That door closed permanently.

By 1984, the bodies still had not been found. The investigation, while officially open, had no active leads. The truck had yielded nothing from the wiped interior surfaces. The partial boot print was too degraded to be of use. The case file was thick with interviews that added up to nothing and thinner with physical evidence than any case Briggs had worked.

He requested additional resources twice and was denied both times. The Mesa County Sheriff’s Office did not have the manpower to sustain a resource intensive investigation into a case with no suspects and no physical evidence of a crime scene. The Aldecoa case was quietly shelved. For Rosemary, her brothers Daniel and Marcus, and the wider community of Fruita, the silence was its own kind of answer.

Something terrible had happened to Robert and Margaret Aldecoa, and the people who were supposed to find out what had run out of things to look at. By 1986, 4 years after the disappearance, the school had held a memorial assembly for Margaret and a tree had been planted outside the library in her name. The city of Fruita had passed a small resolution honoring Robert’s years of service to the Roads and Bridges Department.

These were the gestures a community makes when it has accepted that a mystery will not be resolved. They were also, to Rosemary, unbearable. She did not stop. For 20 years, she sent annual letters to the Mesa County Sheriff’s Office requesting an update on the status of the case. She attended every public meeting where forensic advances were discussed.

She kept her parents’ paperwork, their bills, their letters, a calendar her mother had kept on the kitchen wall. In a banker’s box in her hall closet, she had one photograph she returned to more than any other. Her parents at a 4th of July picnic in 1981. Her father with his arm around her mother’s shoulders. Both of them squinting into the sun.

Both of them laughing at something someone just outside the frame had said. She kept it on her desk. She looked at it every day. She was not interested in moving on. The case had been cold for 22 years when a road construction crew working an expansion of a county access road north of Grand Junction near the Book Cliffs made a discovery in October 2004 that stopped work for the rest of the afternoon.

The crew foreman called the Mesa County Sheriff’s Office. Deputies arrived. What was found in ground that had been undisturbed for more than two decades beneath a collapsed overhang of sandstone were human remains. Two individuals as the medical examiner would later confirm. Forensic analysis and dental records identified them as Robert and Margaret Aldacoa.

They had been there 18 miles from the park where they were supposed to be camping for 22 years. Every case on this channel represents weeks of research, verifying facts and piecing together lives that deserved better. If this work matters to you, please take a second to like this video and subscribe.

 And drop us a comment telling us where in the world you’re watching from. Your support is what makes it possible to keep going. Now, let’s get back to Rosemary Aldacoa and to what the medical examiner found. The discovery of the remains reopened the case immediately. The Mesa County Sheriff’s Office assigned Detective Carla Reyes, a 12-year homicide veteran, to lead the reinvestigation.

Reyes requested and received full access to the original 1982 case file. She reviewed every document. She re-interviewed the surviving witnesses from the original investigation. And she paid particular attention to a detail that had been noted in Sergeant Briggs’s original reports, but never fully pursued. Margaret Aldacoa had seemed preoccupied in the weeks before the trip.

Something at work had been bothering her. Briggs had pulled her school personnel file in 1982 and found nothing. But Reyes pulled a different thread. She went back to Barbara Hooper, still living in Fruita, now in her 60s, and asked a more specific question. Not what Margaret had been bothered about, but who. Barbara thought for a long time.

Then she said there had been someone at the school Margaret had mentioned more than once in that period. A colleague she had found uncomfortable. Someone who she felt watched her in a way that made her uneasy. Barbara had not thought much of it at the time. Margaret had not used the word threatening. She had not been specific.

But the name she had mentioned was one that Barbara had not forgotten. Because he was still, in 2004, a respected figure in the Fruita community. His name was Thomas Garrett, 61 years old, who had been a vocational education teacher at Fruita Monument High School from 1978 to 1997, and was now retired.

 Still living in the area. Still attended the same church he had attended for 30 years. Still volunteered at the Mesa County Fair every summer. Still coached a youth woodworking program out of his garage on Sundays. When his name appeared in Reyes’ notebook, it carried almost no weight of suspicion. Just a thread that needed to be pulled like any other thread.

Thomas Garrett was, by every account in Fruita, a good man. Reyes requested a search of the Mesa County property records for all land owned by Thomas Garrett between 1980 and 1990. The records showed that in 1981, Garrett had purchased a 14-acre parcel of land in the Book Cliffs area north of Grand Junction through a private sale.

He had sold it in 1989. The parcel was less than 2 miles from where the Aldaco remains had just been found. Reyes called the medical examiner. She asked where exactly on the parcel the remains had been located relative to the property boundary. The answer came back the same day. The remains were within what had been the boundary of land owned by Thomas Garrett from 1981 to 1989.

She stared at that document for a long time. Then, she picked up the phone and called the lab. The original case evidence, the partial boot print photograph, the items cataloged from the campsite, and two pieces of physical material lifted from the truck’s exterior surface in 1982, had been preserved in Mesa County evidence storage.

Modern DNA analysis applied to a hair follicle recovered from the driver’s side door seal of the Aldaco’s truck produced a partial profile. Forensic genealogy was used to trace that profile through public ancestry databases. Six weeks after Detective Reyes submitted the sample, the match came back. The DNA connected to a direct male descendant in the Garrett family line.

A confirmatory sample was needed. Investigators collected it from a water bottle Thomas Garrett had discarded in a public trash can outside the hardware store on Peach Street in Fruita on a Tuesday afternoon in March 2005. The lab confirmed the match within 48 hours. Garrett was arrested at his home on a Thursday morning in April 2005.

 He was standing at his kitchen counter with a cup of coffee when Reyes and two deputies knocked. He answered the door. He looked at Reyes. He looked at the warrant. He looked past her at the two deputies standing on his front walk. He set his coffee down on the hall table very carefully as though he was putting it away for later.

He said nothing. He put his hands behind his back and walked out the door. The Fruita community did not know what to make of it. Thomas Garrett had been part of the social fabric of that town for nearly 30 years. He had taught vocational education to two generations of students. He had been a pallbearer at funerals, a face at every potluck, a man people trusted with their children on Sunday mornings.

 Several of his former students told the local paper they refused to believe it. Others, in the days that followed, remembered small things, a look, a moment, something that hadn’t registered at the time and found themselves sitting with those memories in a way that felt distinctly different from how they had always sat with them before. The arrest shocked the community.

 That is not a figure of speech. People in Fruita did not sleep well the week Thomas Garrett was charged with two counts of first-degree murder. The prosecution’s case rested on the DINA match, the property records placing the burial site on land Garrett had owned, and testimony from Barbara Hooper about what Margaret Aldacoa had told her in the weeks before she died.

 The prosecution also presented evidence uncovered during discovery that Garrett had purchased surveying equipment in August 1982, and that receipts for equipment consistent with transport of heavy materials had been found among his archived financial records. The defense challenged the DINA methodology and argued the property overlap was circumstantial.

The jury deliberated for 4 days. In the fall of 2006, 24 years after Robert and Margaret Aldacoa drove out of Fruita with the windows down and the radio playing, Thomas Garrett was convicted on two counts of first-degree murder. He was sentenced to two consecutive life terms without the possibility of parole.

He never explained why. Not in the courtroom. Not in any filing since. Whatever Margaret had seen or known, whatever had made her seem preoccupied in those last quiet weeks of her life, died with her on that mesa in the autumn of 1982 and was buried alongside her husband in ground that held its secret for 22 years.

 The motive remains, in the formal legal sense, unconfirmed. But the families of victims in cases like these will often tell you that the why matters less in the end than the who and the what. And then finally, Rosemary Aldecoa sat in that courtroom for every day of the trial. She was in the front row when the verdict was read.

 She described it later in a statement to the Mesa County Sheriff’s Office as feeling like something that had been pressed against her chest for 24 years had been gently carefully moved aside. She cried. She said it did not feel like victory. She said it felt like being able to breathe. The blue ceramic dish with the lid that Margaret had carried to every school potluck for years had been given to Rosemary after the school memorial in 1986.

She had kept it in a cabinet unused for 20 years. After the conviction, she made tamales for the first time using her grandmother’s recipe. Her mother’s recipe, which she had copied from an index card in her mother’s handwriting and brought them to a family dinner in the dish with the blue lid. Her brothers were there.

Their children were there. The generation that had grown up without knowing their grandparents was there. They ate together in a kitchen that smelled like something good and Rosemary said almost nothing. She did not need to. What the Aldecoa case teaches us is something that every cold case eventually teaches if we listen.

Justice is not automatic. It requires the people who keep showing up. It requires the detective who reads a case file a second time and asks a different question than the first detective asked. It requires the woman who sends annual letters for 20 years and keeps a photograph on her desk and does not accept the silence as an answer.

It requires, sometimes, a road crew hitting something unexpected on a Tuesday afternoon, and a foreman who knows to stop and make a call. These are not dramatic moments. None of them look like justice when they happen. They only look like it afterward, assembled together, when you can finally see what they built.

Before we go, we want to ask you a few things. Do you believe that Thomas Garrett should have been tried decades earlier? And if so, what would it have taken for that to happen in 1982? The prosecution never established a clear motive for why Margaret Aldacoa became a target. Does that absence of a stated motive change how you understand this case? And how many other families do you think are out there right now, still waiting, still sending letters that no one is reading? Justice found Robert and Margaret Aldacoa after 24 years.

Stories like theirs are why this channel exists. If you believe that truth is worth pursuing, no matter how long it takes, subscribe so you don’t miss the next case. More cases are waiting in the description below. Thank you for being here.