Who Was Sandra Galas & What Happened to Her? 2026 Update & Profile

Sandra “Sandy” Galas was a young mother living on the Hawaiian island of Kauai when her life ended in violence in January 2006.

She was in her twenties, raising two young sons and moving through the breakdown of her marriage to Darren Galas. What began as a troubled separation became the background to one of Kauai’s most closely followed murder cases.

Sandra was found assaulted and strangled inside the garage of her home in ‘Ele‘ele. Her death triggered an investigation that focused on the people closest to her, including her estranged husband and her boyfriend.

The case would take more than a decade to reach a courtroom resolution.

• “The Other Side of Paradise”: Dateline NBC Revisits Sandra Galas Homicide August 28 2026
• Who Is Darren Galas & Where Is He Now? 2026 Update & Profile

Sandra Galas Was a Mother of Two Young Boys

Sandra was best known to those close to her as Sandy.

She was a daughter, sister and mother who had two young sons with Darren Galas. By the time of her death, Sandra and Darren were no longer living as a married couple and were moving through a difficult separation.

Their children remained a connection between them. Sandra and Darren shared custody arrangements, meaning they continued to have contact despite the breakdown of the marriage.

Sandra’s role as a mother became one of the most painful parts of the case for her family. Her sons lost their mother when they were still young, and the dispute surrounding their parents became part of the murder investigation.

Sandra and Darren Galas Had Separated

Sandra and Darren had married young, but their relationship deteriorated.

According to accounts of the investigation, Sandra discovered that Darren had been unfaithful. The couple separated and became involved in divorce proceedings.

The separation was not peaceful.

Years after Sandra’s death, investigators uncovered letters she had written to her divorce attorney. Those communications indicated that she was afraid of Darren.

The letters became important because they helped investigators reconstruct the state of the marriage before Sandra was killed. They did not prove who murdered her, but they provided context about the conflict surrounding the couple.

Sandra Had Started a New Relationship

After separating from Darren, Sandra became involved with Ryan Shinjo.

Shinjo would later become an important figure in the homicide investigation because he was the person who discovered Sandra after she was attacked.

His relationship with Sandra also made him a natural subject of police scrutiny.

Investigators examined both Shinjo and Darren because both men were close to Sandra and had potential access to her.

That dual focus would later become important when prosecutors considered whether they could prove a murder case beyond a reasonable doubt.

Sandra Was Expected to Pick Up Her Children on the Morning She Died

On January 25, 2006, Sandra was expected to collect her sons from Darren.

Darren later told investigators that she never arrived.

That missed exchange would become one of the details examined by detectives as they reconstructed Sandra’s final hours.

Investigators looked at who had seen her, where she was expected to be and who had reason to know her movements.

The fact that Sandra did not appear for the planned pickup was significant because investigators later discovered that Darren had a habit of recording disputes and problems involving Sandra in a personal calendar.

Sandra Was Found Dead in Her Garage

Sandra was found dead at her home in ‘Ele‘ele on Kauai.

Ryan Shinjo discovered her in the garage.

She had been assaulted and strangled.

Her death immediately became a homicide investigation.

Sandra’s body was found in or near her vehicle inside the garage, placing the attack within the private space of her home rather than in a public location.

For investigators, the circumstances raised questions about whether Sandra knew her attacker and whether the killer had entered the property without causing alarm.

Police Focused on Two Men Close to Sandra

Investigators soon focused on Darren Galas and Ryan Shinjo.

Both men were questioned. Both also reportedly failed polygraph examinations.

Polygraph results could not establish guilt, but they contributed to police suspicion and encouraged investigators to examine the men’s movements and statements in greater detail.

Darren’s account began attracting particular attention.

Investigators believed parts of his story did not fit with other information they were gathering.

Police arrested Darren on suspicion of murder while they searched his home.

Darren Was Released Because Police Did Not Have Enough Evidence

The early arrest did not lead to a murder prosecution.

Police did not have enough evidence to hold Darren or charge him with killing Sandra.

He was released.

For Sandra’s family, the development marked the beginning of years of frustration.

Authorities had investigated a person they considered a prime suspect, but suspicion was not enough. Prosecutors needed evidence capable of proving guilt in court.

Sandra’s family was left without an arrest that could be sustained and without a clear path toward a murder trial.

Darren Later Received Custody of Sandra’s Sons

After Sandra’s death and Darren’s release, he was granted custody of the couple’s two boys.

That outcome was difficult for Sandra’s family.

They had lost Sandra to murder while the man police had scrutinized continued with his life and remained responsible for raising the children Sandra had left behind.

The custody situation added another emotional dimension to the case.

For Sandra’s relatives, the murder investigation was not an abstract legal process. It affected where her children lived, who raised them and how the family moved forward after her death.

Ryan Shinjo Was Later Imprisoned on Drug Charges

Sandra’s boyfriend also became involved in an unrelated criminal case.

Federal authorities arrested Ryan Shinjo in connection with a methamphetamine trafficking operation.

He was later imprisoned.

Once in custody, Shinjo stopped speaking with investigators about Sandra’s murder.

His criminal history became important because it preserved an alternative suspect for any future defense case.

If prosecutors eventually charged Darren, his attorneys could argue that Shinjo had been investigated, had been the person who found Sandra and had his own serious criminal history.

That possibility would remain a problem for prosecutors for years.

Sandra’s Murder Went Cold

With no prosecution moving forward, Sandra’s homicide became a cold case.

Time passed without anyone being convicted of killing her.

For Sandra’s family, the lack of progress was difficult to accept.

Her father, Larry Mendonca, became one of the strongest voices demanding that authorities continue investigating.

He refused to allow Sandra’s death to fade from public attention.

Sandra’s Father Became Her Most Persistent Advocate

Larry Mendonca spent years pressing for answers.

He continued speaking about Sandra, asking questions about the investigation and pushing authorities to reconsider evidence.

His determination became one of the defining elements of the case.

Sandra’s family did not want her murder reduced to an inactive file.

They kept her name visible across Kauai and made clear that they expected the investigation to continue.

That persistence would become important as new forensic techniques began producing information that had not been available in 2006.

DNA Testing Produced a Break in the Case

As forensic technology improved, investigators returned to physical evidence collected after Sandra’s death.

Testing eventually identified Darren’s DNA on clothing Sandra had been wearing when she was killed.

The result appeared significant.

It connected Darren physically to an item associated with the crime scene.

But prosecutors still faced a problem.

Sandra and Darren were married and had continued interacting because of their children. His DNA on her clothing could therefore be explained without proving that he had attacked her.

The DNA strengthened the case but did not resolve it.

Sandra’s Letters Revealed That She Had Been Afraid

A renewed investigation began in 2012 under Kauai Police Chief Darryl Perry.

A detective assigned to the case reviewed the investigation from the beginning rather than relying only on earlier conclusions.

Among the material uncovered were Sandra’s communications with her divorce attorney.

Those letters indicated that she had been frightened of Darren.

The documents gave investigators a clearer picture of the emotional climate surrounding Sandra before she died.

They also provided evidence that the marital conflict involved more than ordinary disagreement.

Darren’s Calendar Became an Important Piece of Evidence

Investigators also discovered a calendar Darren had kept.

He had recorded detailed notes about his interactions with Sandra, including times when she was late collecting their children or when something she did upset him.

The pattern was striking because he appeared to document many of their disputes.

Yet the day Sandra was murdered contained no similar entry.

That absence mattered because Darren had told investigators Sandra was supposed to collect the children but had failed to appear.

If he routinely recorded missed pickups or disputes involving Sandra, investigators questioned why the day she vanished and was killed lacked the type of notation found elsewhere.

The calendar did not prove murder, but it became part of the circumstantial case.

Investigators Eventually Built a Murder Case

By combining old evidence with new forensic findings, investigators developed a case they believed was strong enough to present to prosecutors.

They had Darren’s DNA on Sandra’s clothing.

They had Sandra’s letters describing fear.

They had the history of the couple’s troubled separation.

They had inconsistencies investigators believed existed in Darren’s statements.

They had the unusual calendar.

Taken together, those elements created a stronger picture than investigators had possessed in 2006.

More than a decade after Sandra was killed, Darren was indicted.

Darren Galas Was Charged With Second-Degree Murder

Authorities charged Darren with second-degree murder.

He was arrested and held on $1 million bail.

For Sandra’s family, the arrest was the moment they had spent years waiting to see.

The man who had attracted police suspicion shortly after Sandra’s death would finally face a homicide prosecution.

But the case still presented problems.

Much of the evidence was circumstantial, and prosecutors knew the defense could point toward Ryan Shinjo as an alternative suspect.

That created a risk that Darren could be acquitted.

The Murder Charge Ended in a Plea Deal

The case did not result in a murder trial.

In January 2018, Darren entered a no-contest plea to first-degree assault causing serious bodily injury.

The charge was less serious than second-degree murder.

A no-contest plea meant Darren accepted conviction and sentencing without formally admitting the underlying conduct in the same manner as a guilty plea.

Judge Kathleen Watanabe accepted the plea.

Darren was convicted.

For Sandra’s family, the result was difficult.

They had spent years seeking justice for a murder, yet the criminal case ended with an assault conviction.

Darren Received the Maximum 10-Year Sentence

In May 2018, Darren was sentenced to 10 years in prison.

It was the maximum sentence available for the first-degree assault conviction.

The sentence brought the criminal case connected to Sandra’s death to a close 12 years after she was killed.

Prosecutors said the resolution ensured Darren faced prison rather than risking a murder trial that could end in acquittal.

For Sandra’s family, the sentence offered legal accountability but not the murder conviction they had wanted.

Sandra’s Father Died Before the Case Was Finished

Larry Mendonca did not live to see the final sentencing.

He died of a heart attack before the criminal case concluded.

His absence added another layer of loss for Sandra’s family.

Larry had spent years fighting to keep the case alive, pressing investigators and refusing to accept that his daughter’s murder might never be prosecuted.

A family member later read a victim-impact statement on his behalf in court.

The message reflected the family’s view that Darren might serve a limited prison sentence, but Sandra’s loved ones would live with her death for the rest of their lives.

Sandra’s Family Created the Never Forget Sandy G Foundation

Sandra’s family turned part of their grief into advocacy.

Larry and Toshie Mendonca, along with Sandra’s brother Lawrence, established the Never Forget Sandy G Foundation.

The organization supported domestic violence awareness and raised money for services helping survivors.

The family also used the campaign to keep Sandra’s case in public view while the murder remained unresolved.

They produced bumper stickers, maintained community awareness and offered a $20,000 reward for information leading to an arrest and conviction.

A charity golf tournament became part of that effort.

Money raised through the event supported the YWCA and programs assisting people affected by domestic violence.

Sandra Became More Than the Victim at the Center of a Cold Case

Over time, Sandra’s name became connected to more than the circumstances of her murder.

Her family made sure she was remembered as a mother, daughter, sister and member of the Kauai community.

They also used her story to draw attention to domestic violence.

The movement created in her name continued after the criminal case ended.

That work gave Sandra a legacy beyond the investigation and the courtroom proceedings.

Her family transformed the search for justice into a continuing effort to help people facing violence in their own relationships.

What Happened to Sandra Galas

Sandra Galas was strangled in the garage of her ‘Ele‘ele home on January 25, 2006.

Police focused on two men close to her, but the investigation eventually centered on her estranged husband, Darren Galas.

Darren was initially arrested but released because investigators lacked enough evidence to prosecute him.

Years later, improved forensic testing identified his DNA on Sandra’s clothing. A renewed investigation also uncovered letters showing Sandra had been afraid of him and a calendar documenting Darren’s grievances involving Sandra.

Authorities eventually charged him with second-degree murder.

The case never reached a murder verdict.

Darren entered a no-contest plea to first-degree assault in 2018 and received the maximum sentence of 10 years in prison.

For Sandra’s family, the resolution ended the criminal case without fully answering the loss at its center.

Sandra had been a young mother trying to move forward from a troubled marriage. She was killed before she had the chance to build the next part of her life.

What remained was the family she left behind, the children who grew up without her, and the campaign that made sure Kauai would not forget Sandy G.

More “The Other Side of Paradise”

• “The Other Side of Paradise”: Dateline NBC Revisits Sandra Galas Homicide August 28 2026
• Who Was Sandra Galas & What Happened to Her? 2026 Update & Profile
• Who Is Darren Galas & Where Is He Now? 2026 Update & Profile