Peter Lucas Moses, the leader of a Durham, N.C. polygamist group, has admitted to killing his ex-girlfriend and a 4-year-old boy who he thought was gay.

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Moses pleaded guilty Monday to two counts of first-degree murder in the deaths of 4-year-old Jadon Higganbothan and 28-year-old Antoinetta Yvonne McKoy.

The plea will allow the 27-year-old Moses to avoid the death penalty in exchange for his testimony against others charged, including his mother, brother and sister. Higganbothan’s mother was also charged.

According to WRAL news, prosecutors say Moses shot the boy because he thought he was gay and then killed McKoy because he feared she would tell police. Their bodies were buried in plastic bags behind a Durham house.

Moses was a member of a religious sect known as the Black Hebrews, which believes it descends directly from the ancient tribes of Israel.

Moses is currently being held in jail without bond. Meanwhile, Harris, Moses’ brother, P. Leonard Moses, and his sister, Sheila Moses, are charged as accessories in McKoy’s death.

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