Three months after four children were found dead inside a New York apartment alongside their mother and grandmother, their father is speaking publicly about the devastating loss — and the unanswered questions surrounding what happened before their deaths.

Harper Harmon, 13, Hudson Harmon, 11, and 10-year-old twins Gavin and Gracelynn Harmon were found inside their grandmother’s Mechanicville apartment on June 23.

Their mother, Sarah Myers, 44, and grandmother, Amy Steadman, 64, were also found dead at the scene.

According to Mechanicville police, the four children were victims of homicide, while the deaths of Myers and Steadman were ruled suicides.

Investigators have said the evidence points to a planned and coordinated act involving the two adults.

For their father, Brady Harmon, the tragedy has been made even more difficult by the fact that he had been preparing to reunite with his children.

 A FAMILY REUNION THAT NEVER HAPPENED

Harmon had been preparing for a trip to Utah, where he hoped to spend extended time with his children.

He said it would have been his first extended parenting time with them in more than six years.

Instead, he learned that all four children were dead.

Investigators believe the children died on June 10, but their bodies were not discovered until June 23, when police conducted a welfare check at the apartment after concerns were raised about the family.

That 13-day period has become one of the most haunting elements of the case.

While Harmon was looking forward to seeing his children again, authorities were ultimately called to an apartment where all four had already died.

 TOXICOLOGY RESULTS ADD A NEW LAYER TO THE CASE

In September, Mechanicville police released toxicology findings from all six deaths.

Police Chief William Rabbitt said diphenhydramine, an antihistamine commonly found in medications such as Benadryl, was detected at fatal or lethal levels in all six individuals.

Mitragynine, the primary chemical compound associated with kratom, was also detected in four of the six people.

Authorities said the findings were consistent with evidence gathered during the investigation and did not change the official classifications of the deaths.

Police have said the children were intentionally poisoned.

One of the children, Gavin, also suffered fatal sharp-force injuries, according to investigators. Authorities previously said evidence indicated he may have attempted to resist.

The toxicology results therefore provided investigators with additional information about the circumstances surrounding the deaths while the broader investigation continued.

POLICE SAY THE MOTHER AND GRANDMOTHER COORDINATED THEIR ACTIONS

Investigators have said Myers and Steadman communicated with one another while planning the deaths.

Police reviewed messages between the two women and said the communications showed coordination in the days leading up to the killings.

Authorities also said the women made purchases involving medications before the children died.

Investigators discovered handwritten material inside the apartment as well as other evidence they said helped establish Steadman’s involvement.

Police have described the case as a coordinated act rather than an isolated incident.

Authorities have also said the women appeared to believe they were acting to protect the children from alleged abuse.

However, investigators said they found no evidence supporting the allegations against Harmon.

THE FATHER DENIES THE ALLEGATIONS

Harmon has consistently denied claims that he posed a danger to his children.

According to investigators, Myers and Steadman had made allegations that the children were being harmed or endangered by their father.

Police said those claims could not be verified.

The history between Harmon and Myers included a prolonged custody dispute, and Harmon eventually moved to Utah.

That history is now central to the father’s legal claims.

Harmon argues that authorities had information about his children that should have resulted in stronger intervention before the tragedy occurred.

A $400 MILLION CLAIM AGAINST GOVERNMENT ENTITIES

On September 18, Harmon filed a notice of claim, a legal step required in New York before certain lawsuits can be brought against government entities.

The filing names the City of Mechanicville, Saratoga County, Mechanicville City School District, Ballston Spa Central School District and Mechanicville Housing Authority.

Harmon intends to seek approximately $400 million, alleging negligence, civil-rights violations and failures to adequately protect his children.

The filing contains serious allegations concerning the children’s treatment and argues that various agencies had opportunities to identify potential dangers.

However, those allegations are claims made through the legal process and have not been proven in court.

Harmon’s attorneys say they intend to examine the actions of child protective services, schools and other agencies as part of their effort to determine whether warning signs were missed.

 A 2024 SCHOOL INCIDENT HAS COME BACK INTO FOCUS

One of the most significant allegations in the legal filing involves an incident reported at school in May 2024.

According to Harmon’s notice of claim, several of the children became seriously ill after their mother reportedly said they had been given Benadryl.

Three children were reportedly taken to Albany Medical Center.

Another allegedly received Narcan after displaying symptoms that the filing associates with a possible opioid overdose.

Harmon argues that the incident should have triggered a much deeper investigation into the children’s welfare.

The filing also alleges that the children were not tested for diphenhydramine or kratom at the time.

The agencies named in the legal claim have been approached for comment, while county officials have cited confidentiality restrictions surrounding child-welfare investigations.

QUESTIONS ABOUT PREVIOUS CHILD-WELFARE INVESTIGATIONS

The tragedy has also drawn renewed attention to previous reports involving the children.

Local reporting has confirmed that Saratoga County Child Protective Services conducted multiple investigations concerning allegations of abuse or maltreatment.

Because child-welfare records are generally confidential, officials have declined to publicly discuss the details of individual investigations.

Harmon argues that those earlier interactions represented warning signs that should have received greater attention.

His attorneys say they plan to investigate what information was available to government agencies, schools and other organizations before the children’s deaths.

Whether those agencies failed to act appropriately will ultimately be determined through evidence and the legal process.

FOUR CHILDREN WHO SHOULD HAVE HAD THEIR WHOLE LIVES AHEAD OF THEM

Behind the police reports, toxicology results and legal filings are four children whose lives ended far too soon.

Harper was 13.

Hudson was 11.

Gavin was 10.

Gracelynn was 10.

Gavin and Gracelynn were twins.

They should have had years ahead of them — birthdays, school milestones, friendships, family memories and futures of their own.

Instead, their names are now at the center of a devastating investigation that has left their father fighting for answers.

For Harmon, the legal battle is not simply about money.

He has said that no financial award could ever replace his four children.

His attorneys have described the $400 million figure as an initial legal claim intended to preserve his rights while the allegations are investigated and the case develops.

THE QUESTIONS THAT REMAIN

The toxicology findings have answered an important question about substances detected in the six deaths.

Police have also publicly described their findings regarding the deaths of the four children and the two adults.

But significant questions remain about the events that preceded June 10.

What warning signs were known?

What information reached schools and child-welfare officials?

Could earlier intervention have changed what happened?

And were opportunities missed to protect the four children?

Those questions are now likely to become an important part of Harmon’s legal fight.

The investigation remains ongoing, while the civil claims have yet to be tested in court.

For now, the case stands as a devastating story of four young siblings whose lives ended together — and a father who says he will continue seeking answers about what happened before they were gone.

Harper, Hudson, Gavin and Gracelynn were more than names in an investigation. They were four children with families, personalities and futures that will never get the chance to unfold.