Harmony Montgomery Case: Missing New Hampshire Girl's Step-Mother Says Dad Killed Daughter, Gave Cover Story to Police

In an interview with detectives on June 3, Missing Harmony Montgomery's stepmother Kayla Montgomery allegedly informed them that the girl's father was to blame for her demise, according to New Hampshire court documents.

Adam Montgomery, Harmony's drug-addicted father and career criminal, was charged with murder, evidence tampering, and other offenses in connection with the young girl's death, which is thought to have happened on December 7, 2019, but went unreported for more than two years.

Missing Harmony Montgomery's Dad Killed Her

According to the New Hampshire Attorney General John Formella, Adam Montgomery allegedly struck the young child in the head on that occasion with a closed fist, recklessly causing the death of Harmony Montgomery, a person under the age of 13, under circumstances manifesting an extreme indifference to the value of human life, as per Fox News.

At a Monday news conference, Formella revealed that Adam Montgomery, 32, had also been charged with altering physical evidence, abusing a corpse, and tampering with witnesses or informants.

Harmony Montgomery's mother, Crystal Sorey, reported the child missing in November 2021 and claimed to have last seen her on a FaceTime chat in the spring of 2019. Investigators came to the conclusion that Harmony Montgomery, 5, had been murdered in August after she was last seen in October of this year, according to the police.

Between December 7, 2019, and March 4, 2020, Adam either destroyed, hid, or covered up Harmony's body, according to Formella. This prevented law enforcement from completing a thorough investigation.

Court filings filed in the Hillsborough County Superior Court on Monday claim that during a June interview, 32-year-old Kayla Montgomery allegedly informed detectives with the Manchester Police Department that Harmony's father, Adam Montgomery, killed the kid in December 2019.

According to The Union Leader, Kayla Montgomery first told police lies about the firearms Adams is suspected of stealing in a different case and even told her father-in-law that she still loved her ex-husband despite the fact that the two had split up.

Missing New Hampshire Girl's Stepmom Admits She Lied

Kayla Montgomery changed her narrative and acknowledged lying to Manchester detectives after being accused of perjury in her grand jury testimony. She disclosed information to the police about Harmony Montgomery, who hasn't been seen since 2019.

The court papers were submitted on the same day that Adam Montgomery was accused of second-degree murder and other offenses. Kayla Montgomery, 32, was detained on Monday and accused with murder, fabricating physical evidence, interfering with witnesses, and abuse of a corpse, as previously reported by CrimeOnline.

The allegations relate to Harmony, 5, who was reported missing and is believed to have died, ABC 7 Chicago reported. A Lawrence, Massachusetts judge granted custody of Harmony Montgomery to Adam Montgomery in 2019.

Due to drug abuse of Harmony's biological mother, she had already lost custody, and Harmony moved out of foster care in Massachusetts to live with Montgomery in New Hampshire. That winter, Harmony vanished from Manchester, New Hampshire, according to detectives.

For two years, no one reported her missing. There was no agreement between the child welfare organizations in Massachusetts and New Hampshire to assure Harmony's adequate care, according to a damning report from the Massachusetts Office of the Child Advocate published this spring.

Since that time, a memorandum of understanding for kids moving across states has been developed, according to the Massachusetts Department of Children and Families. To strengthen oversight of DCF, state politicians tried to pass laws, but none of them became law.

The Office of the Child Advocate is still requesting a working group to investigate prioritizing the needs of kids like Harmony. Flanagan believes that all of this needs to be quickly rectified in order to prevent a catastrophe similar to Harmony's, according to CBS News.