Kayla Montgomery takes stand in Harmony Montgomery murder trial

Photo courtesy of MGN

By Madison Lucchesi

The New Hampshire trial accuses Adam Montgomery of killing his five year old daughter, Harmony Montgomery, in 2019. Stepmother Kayla Montgomery took the stand on Friday.

The defense argues that Kayla Montgomery is responsible for Harmony’s death, while prosecutors argue that Adam Montgomery killed Harmony by hitting her after she soiled herself. 

On Thursday, Defense Attorney James Brooks stated, “Adam Montgomery did not cause Harmony’s death. Kayla Montgomery was the last person to see Harmony alive.”

Kayla Montgomery is serving a sentence for committing perjury in a plea deal. She allegedly lied about her whereabouts when Harmony was last seen. She said she lied out of fear for herself, Adam and her children and because Adam told her to. 

“He believed that if there was nobody, there could be no evidence of the horrible things that he did to her and he would get away with it,” said Prosecutor Christopher Knowles.

Harmony died on Dec. 7, 2019 in Manchester, NH in the car she was living in with her father, stepmother and two step brothers, according to authorities. Prosecutors say Adam Montgomery carried Harmony’s body in a duffel bag for months afterward. Harmony Montgomery was declared missing by police in 2021. Her remains have not yet been found.