The group was part of the extended LeBaron family, Mormon fundamentalists who first came to Mexico nearly a century ago — when the Church of Jesus Christ of Latter-day Saints in Salt Lake City started cracking down on members who were still practicing polygamy.

Over the years, members of the extended LeBaron family have spread throughout northern Mexico as well as into Arizona and Utah.

…The family has had a sordid history, Bowman said. Its founder’s sons fell victim to infighting. One, Ervil LeBaron, formed his own church that took on a cult following, said Anna LeBaron, who was one of Ervil’s 51 children with 13 wives. She was born at the LeBaron colony and escaped her father’s cult when she was 13; she detailed her experience in a 2017 book, “The Polygamist’s Daughter.”

The cult was disbanded in the early 1990s and her father died in prison in 1981 while serving a life sentence for murder.

Slain U.S. citizens were part of Mormon offshoot with sordid history

From every angle this is just a wild story.