Overview

Sandra was last seen on August 7, 2019, at her home on Spofford Avenue in Hanson. Two days later, after repeated attempts to contact her failed, her daughter went to the residence and found troubling signs:

1. The air conditioner was running.
2. The back door was unlocked.
3. Sandra’s dog was inside without food or water.
4. Personal belongings appeared untouched.
5. Snacks were set out for her grandchildren.

Sandra had no cellphone or computer and was not known to leave without informing family. Her disappearance was immediately treated as suspicious.

Detailed Case Breakdown

Sandra Crispo Case: Missing Massachusetts Mother Found After Nearly Six Years But Questions Remain

The disappearance of Sandra Crispo is one of Massachusetts’ most haunting unresolved cases. The Hanson mother and grandmother vanished in August 2019 under circumstances that immediately alarmed her family. For nearly six years, investigators pursued leads, conducted searches, and analyzed forensic evidence, but no confirmed trace of Sandra was found.

In May 2026, authorities announced a major breakthrough: human remains discovered in a wooded area near Route 3 in Plymouth, Massachusetts, were positively identified as Sandra Crispo through FBI DNA testing. The discovery has transformed the long-running missing persons case into an active death investigation and renewed hopes that those responsible may eventually be identified.

Who Was Sandra Crispo?

Sandra Crispo was a 54-year-old mother and grandmother who had recently moved from Quincy to Hanson to be closer to her daughter, Laina McMahon, and her grandchildren.

Family members described Sandra as devoted to her loved ones and deeply involved in her grandchildren’s lives. She was expected to babysit shortly after her disappearance, making her sudden absence especially concerning.

The Day Sandra Crispo Vanished

Sandra was last seen on August 7, 2019, at her home on Spofford Avenue in Hanson. Two days later, after repeated attempts to contact her failed, her daughter went to the residence and found troubling signs:

1. The air conditioner was running.
2. The back door was unlocked.
3. Sandra’s dog was inside without food or water.
4. Personal belongings appeared untouched.
5. Snacks were set out for her grandchildren.

Sandra had no cellphone or computer and was not known to leave without informing family. Her disappearance was immediately treated as suspicious.

Years of Investigation

From 2019 onward, Hanson Police Department, Massachusetts State Police, and the Plymouth County District Attorney’s Office conducted an extensive investigation.

Investigative efforts included:

1. Interviews with family, friends, and associates
2. Search warrants
3. Ground searches
4. Review of phone and financial records
5. Forensic testing
6. Collaboration with federal authorities, including the Federal Bureau of Investigation

Despite national attention and public appeals, the case remained unsolved for years.

Human Remains Found in Plymouth

On March 6, 2025, a hunter discovered part of a human skull along a deer trail in a wooded area near Route 3 North between exits 13 and 14 in Plymouth.

The remains were sent to the Massachusetts Office of the Chief Medical Examiner. Because traditional identification methods were inconclusive, the FBI conducted advanced DNA analysis and compared the profile through CODIS, the national DNA database.

On May 5, 2026, officials confirmed that the remains belonged to Sandra Crispo.

Family Reaction

Sandra’s daughter, Laina McMahon, said the identification brought both heartbreak and renewed determination.

After years of uncertainty, the discovery offers the family some measure of closure while intensifying the search for answers about how Sandra died and who may be responsible.

McMahon expressed hope that investigators can now “pursue those responsible and criminally” following the confirmation of her mother’s identity.

Latest Investigation Update (2026)

Authorities have emphasized that the investigation remains active and ongoing.

Current facts known to the public include:

1. Sandra’s remains were identified through FBI DNA testing.
2. The exact cause and manner of death have not been publicly released.
3. No arrests have been made.
4. Investigators continue reviewing evidence gathered over several years.
5. Law enforcement is still requesting tips from the public.

Anyone with information is urged to contact Hanson Police at 781-293-4625 or Massachusetts State Police assigned to the Plymouth County District Attorney’s Office at 508-894-2600.

Why the Case Remains So Significant

The Sandra Crispo case resonates because of the unexplained nature of her disappearance and the years of uncertainty endured by her family. The recent identification of her remains has revived public interest and may provide investigators with crucial new forensic and geographic evidence.

With renewed focus and advancing forensic techniques, authorities and family members remain hopeful that the mystery surrounding Sandra Crispo’s death will finally be solved.

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Facebook Post:

MISSING PERSON UPDATE: Remains identified as Sandra Crispo

After nearly 7 years of unanswered questions, there has been a heartbreaking update in the case of Sandra Crispo.

This past week, authorities confirmed that human remains discovered in Plymouth, Massachusetts in March 2025 have been identified as Sandra Crispo, who vanished from Hanson in August 2019 at 54 years old.

Sandra had recently moved from Quincy to Hanson to be closer to her daughter and grandchildren. She was known as a devoted mother and grandmother who helped care for her grandsons regularly. According to her family, it was completely unlike her to disappear without warning.

Sandra was last seen on August 7, 2019. A relative reportedly drove her home after taking her to a mechanic while her car was being repaired. Surveillance footage later captured Sandra stopping at a gas station for cigarettes — the last confirmed sighting of her.

Two days later, when Sandra failed to show up to babysit her grandchildren and family couldn’t reach her, alarm bells immediately went off. Her daughter went to Sandra’s home and found the lights on, the back door unlocked, and no sign of Sandra. Her purse, shoes, dog, and other belongings had been left behind. Family members also said Sandra did not own a cell phone or computer, making it even more unusual that she vanished without contact.

Over the years, investigators conducted extensive searches, interviews, forensic testing, and reviews of records. Sandra’s family has long believed foul play was involved. Her daughter previously shared that Sandra had no history of disappearing, no known medical issues, and no signs of wanting to leave her life behind.

In March 2025, a hunter discovered a portion of a human skull near Route 3 in Plymouth. FBI DNA testing later confirmed the remains belonged to Sandra Crispo.

Her cause of death has not yet been released, and investigators say the case remains active and ongoing.

Anyone with information is urged to contact Hanson Police at 781-293-4625, or the Massachusetts State Police assigned to the Plymouth County District Attorney’s Office at 508-894-2600.

Info from: Boston 25, NBC Boston