The father was later arrested after a standoff. Kyle's body was found soon afterward nearby.
The father apparently killed the boy because he was unhappy about the mother being with another man.
From an article:
In an affidavit filed with the charges in state court in Bethel Saturday, a state trooper said Moses entered a home in the village where the child was staying with his mother on Thursday night. Moses later shot the child in the head, and told troopers afterward he was upset with his child's mother for being with another man, troopers said. ...
According to the affidavit, when Moses entered the home in Tununak, he "was carrying a shotgun and a bucket which (a witness) believed to have homebrew in it."
He told everyone to exit the house except for his son, and ordered them to leave their cell phones behind, the affidavit said.
When one of the women in the home didn't immediately comply, "Edward racked his shotgun, chambered a round, and then pointed the shotgun" at her. She dropped her phone and left for a neighbor's house, she told troopers.
An aunt of the child told troopers Moses called her later Thursday night demanding to speak with the child's mother, according to the affidavit. Moses gave the aunt 15 minutes to find the child's mother, the trooper wrote, or he would kill the child, then himself.
As the 15 minutes neared, Moses called back, and Moses could be heard tellng the child to say goodbye to his aunt, the trooper affidavit said. The aunt then heard a gunshot over the phone, the trooper said in the court filing.
When troopers arrived in the village on Friday, Moses was barricaded inside his father's house, and surrendered after several hours of negotiations, troopers said.
He told the officers he had shot the child, and said he was "upset at (the child's mother) for being with another man and didn't think she should be burdened with their son," the trooper's affidavit said.
Troopers said the child's body was found down the beach from the Moses house, with an apparent gunshot wound to the head.