The Rio Grande Valley in Texas, 1997 — a place where ordinary lives unfold against the backdrop of sun-drenched streets and quiet neighborhoods.

On a seemingly normal Saturday morning, Ireina Martinez, a dedicated USPS driver, climbed into her delivery truck, adjusting her cap as the warm Texas air settled around her.

For seven years, she had worn the blue uniform with pride, carrying on the family tradition after her sister Colby vanished without a trace during a similar route.

That day, like every other, Ireina checked her route sheet, pulled out of the depot, and began her deliveries.

Yet, beneath the familiar routine, a weight pressed heavily on her heart — seven years since Colby disappeared, leaving behind only unanswered questions and an empty house that felt far too large for one person.

The streets of the valley town passed by — modest homes fenced by chainlink, yards dotted with palm trees — scenes that once held shared dreams and whispered plans between the sisters.

Colby, the ambitious nursing student, had been just two semesters away from graduation, filled with hope about moving in with her boyfriend Robbie and starting a family.

But that future was stolen.

The investigation into Colby’s disappearance had gone cold, with no body, no clues, and no closure.

Ireina’s life had shifted into a numb routine, her grief buried beneath the motions of daily work.

Then, a sudden call shattered the fragile calm.

At a gas station payphone, her supervisor relayed shocking news: a USPS bicycle had been found in the city canal — the same canal that had been drained for maintenance for the first time in years.

Missing 411: USPS Driver Vanished on Her Route in 1997 — A Forgotten Canal Held the Truth | by Missing 411 Stories | Jun, 2025 | Medium

The discovery reignited a painful hope.

The bicycle was unmistakably Colby’s — the blue frame, the mail baskets, the worn spots where she clipped her scanner.

Forensics had processed it, but water exposure meant any fingerprints or DNA evidence were long gone.

Detective Ray Ooa, the very man who had handled Colby’s case seven years prior, met Ireina at the scene, his eyes sharp despite the years that had passed.

As they stood by the canal’s edge, the weight of the moment settled over them — this was the first real lead in years.

Robbie Delgado, Colby’s boyfriend, arrived, his face pale with shock, haunted by the memories of a love lost and a mystery unresolved.

The bicycle’s discovery was a bittersweet breakthrough — a tangible piece of a puzzle that refused to be solved.

Yet, the questions multiplied.

How had the bike ended up in the canal?

Who was responsible for Colby’s disappearance?

And most hauntingly — where was Colby herself?

The investigation reignited, peeling back layers of grief and silence.

Ireina took time off from her route, grappling with the resurgence of pain and hope intertwined.

USPS Driver Vanished on Her Route in 1997 — 7 Years Later the City's Canal Gets Drained… - YouTube

She visited Robbie’s home, where boxes of Colby’s belongings sat packed and untouched — nursing books, baby clothes, reminders of a life that never came to be.

Robbie, struggling with his own demons, revealed a painful truth: he was moving on.

His new girlfriend, Josephine Miller, was pregnant and had just moved in with him.

The revelation stung, but Ireina understood — grief was a lonely journey, and life moved forward, even when hearts remained broken.

Yet, Josephine’s arrival would soon cast a dark shadow over the fragile peace.

A package Josephine entrusted to Ireina to ship bore an address that sent a chill down her spine — the very building where Colby was last seen alive.

The threads of the past and present began to weave a sinister tapestry.

Surveillance footage from 1997 surfaced, grainy but revealing.

Colby was seen wheeling her bicycle into an apartment building, disappearing inside — never to emerge again.

Hours later, a mysterious woman in a dark hoodie appeared, pushing the same bicycle toward the canal and dumping it into the water.

The figure’s long, wavy hair did not match Colby’s short, curly locks.

Who was she?

The investigation focused on the building — 4782 Industrial Boulevard — and its residents.

Josephine Miller, the pregnant girlfriend, had lived there for years.

Security footage from 2000 showed Josephine wearing the very same hoodie seen in the 1997 footage.

Cyclist severely injured after being hit by USPS truck in Snohomish County

The pieces fell into place with chilling clarity.

Detectives obtained a warrant to search Josephine’s apartment, uncovering a web of obsession, jealousy, and deadly intent.

Dolores Ramirez, the building’s receptionist, tearfully confessed her role in sheltering Josephine — a troubled runaway who had become like a daughter to her.

Josephine’s obsession with Robbie, Colby’s boyfriend, had festered into a dark plan.

She saw Colby as unworthy of Robbie, convinced she herself deserved a better life with him and the child she carried.

The night Colby disappeared, Josephine had lured her to apartment 514 under the guise of a package pickup request.

There, she murdered Colby, hiding the body and keeping her remains as a twisted trophy.

Seven years of silence, seven years of lies.

Josephine’s cruelty extended beyond death.

She had kept Colby’s bones, wrapped in a baby blanket, alongside her belongings — a haunting reminder of a life stolen.

The discovery shattered Ireina’s world anew.

USPS Driver Vanished on Her Route in 1997, After 7 Years, the Water's Gone — And the Truth Surfaces - YouTube

But the nightmare was far from over.

Josephine’s desperation led her to attempt suicide in Ireina’s own home, after drugging Robbie into unconsciousness.

The chilling note she left behind was a final act of calculated cruelty, designed to inflict maximum pain on those left behind.

Paramedics rushed Josephine and Robbie to the hospital — one fighting for her life, the other barely clinging to it.

The police secured the crime scene, evidence mounting against Josephine and those who had enabled her.

The investigation revealed the depths of manipulation and heartbreak that had ensnared the family.

Ireina, despite her grief, stood resolute — determined to see justice done for Colby.

The police continued their work, piecing together the timeline, the motives, and the devastating truth.

The community watched, gripped by the tragic story that unfolded from the quiet streets of the Rio Grande Valley.

Colby’s story became a symbol of lost dreams and the relentless pursuit of truth.

Her sister’s courage in the face of unimaginable pain inspired many.

USPS Driver Vanished on Her Route in 1997 — 7 Years Later the City's Reservoir Gets Drained…! - YouTube

As the sun set over the valley, casting long shadows over the streets where Colby once delivered mail, a sense of closure began to emerge.

Answers, though painful, brought a measure of peace.

Justice, though delayed, was finally within reach.

This haunting tale reminds us that beneath the surface of everyday life, stories of love, loss, and resilience are waiting to be told.

It is a testament to the power of perseverance, the bonds of family, and the enduring hope for healing.

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Together, we honor her memory and stand with those who seek justice.