Informant: Polygamous Cult Leader Shot and Killed Jadon Higganbothan, Boy Missing Since October

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A six-year-old North Carolina boy, Jadon Higganbothan, has been missing since October -- and is now feared dead after an informant told police that the leader of a polygamous cult shot the boy in a fit of rage.

The boy's mother, Vania Sisk, also may have shot and killed a woman, Antoinetta McKoy, who hasn't been heard from since December, according to a search warrant.

Sisk is part of a group called the "Black Hebrews," according to police. Jadon lived with her and at least eight other adults in a house in Durham, N.C. At least nine other children lived with the group, which was led by Peter Moses.

Neither Moses or Sisk has been charged with any crime related to the disappearance of Jadon or McKoy.

An ex-member of the group alleges that Moses, 27, grew angry with the Jadon in October of last year.

Moses "had grabbed a gun and began pacing angrily around the house," according to a search warrant.

Moses then called for the boy to come to the basement of the house. That was the last time the informant saw the boy alive.

The informant told police that he "heard loud music and the sound of a gunshot," according to the warrant.

Moses allegedly wrapped Jadon's body in plastic and placed it in a suitcase, the informant told police. The suitcase was then put in the attic, according to the warrant.

Several days later, "The body began to stink and Peter Moses was asked to remove the body, which he did," said the warrant.

Sisk told Durham police that she last saw her son Feb. 20 when she gave him to an acquaintance. She has given police two different names for that acquaintance, police said.

The ex-Black Hebrews member, who police have not identified, also said Sisk killed a woman attempting to flee the group. Antoinetta McKoy ran out of the Durham home and flagged down a woman driving by a few weeks ago, according to the warrant.

After McKoy got into the woman's car, two members of the group walked to the car and told the driver that McKoy was okay, the warrant said. They escorted McKoy back to the Durham home.

Police Informant: Jadon Higganbothan, 6, Killed by Cult Leader

"Once inside the residence, the two females began to beat Antoinetta unconscious," the warrant reads.

Moses handed Sisk a gun and later told her to shoot McKoy, according to the warrant.

Moses then helped the Sisk and another woman remove the body, according to the warrant.

McKoy, 28, knew Moses from high school and had reconnected with him on Facebook a year ago, McKoy's sister told ABC Affiliate WTVD.

McKoy was scared of Moses and the "Black Hebrews" group, her sister said.

"She was like, 'You don't understand about how it works, they kill people' and that he was known for carrying guns and that everyone down there who was affiliated with him was afraid of him," Dubose said.

Dubose last saw her sister in December when she and Moses had come to Washington, D.C. to pick up some belongings.

"She had gave us a hug and said that she loved us and that she would be calling us soon because she's coming back," Janayia Dubose told WTVD. "We're still concerned about whether she's alive or dead and this is not like my sister, so it's like really devastating to my family."

Dubose said that her sister's relationship with Moses turned violent last August.

"She's saying that he smacked her in the mouth with the gun and he shot at her three times," Dubose told WTVD.

Moses and his followers moved for a short time to Colorado last month after Durham police began inquiring about McKoy. Durham Police enlisted the help of the Teller County Police in Colorado to keep track of the group when they left North Carolina.

Teller County Police discovered nine children and nine adults living at a home in Colorado. The children were removed from the group and placed with social services. Sisk is believed to be the mother of three of those children. At least five of the children share the same father, police said.

Sisk, who police at one point thought was also missing along with her son, was found and questioned at a Wal-Mart in Woodland Park, Colorado on Feb. 23.

She told police that three of her children were living with her at the home with Moses and seven other adults. She did not mention Jadon.

Police Informant: Jadon Higganbothan, 6, Killed by Cult Leader

When police said that all of the children living with the group were going to be removed from the home, one of the followers lashed out at Sisk, saying, "We are losing all of our kids cause you don't know where one of yours is," according to the warrant.

The group left Colorado four days after Sisk was questioned.

"Our information is that they left on the 27th of February and we actually observed them leaving in a Uhaul van and their destination was Durham," Sgt. Nick Olmsted from the Teller County Police Department said.