Grieving father searching for missing grandkids after daughter allegedly murdered by cult leader

A Kansas grandpa is desperately searching for his four grandkids after their mom was brutally murdered and dumped in a shallow grave — allegedly by her husband, a self-proclaimed Mississippi cult leader called the “Silver Creek Messiah.”

One of the last things La’Datra Williams, 26, told her grief-stricken dad, U.S. veteran Eddie Williams, on May 20 was she was “determined” to leave Charles Sims and his polygamous cult, which believes he’s a true vessel for the Holy Spirit and ordained by God almighty to fix the world’s problems.

Sims is charged with first-degree murder for La’Datra’s killing.

“I don’t know where my grandchildren are, and I need to find them,” Eddie Williams told The Post this week.

Sources said Sims’ other wives — he has four — may have taken the children to Missouri.

The authoritarian Sims, 57, confessed to slaughtering La’Datra after several days of questioning, and led cops to her remains on July 14, two months after she vanished from Williams’ 18-acre property in Silver Creek, Miss.

Now, police are investigating other deaths and disappearances connected to Williams’ cult, which has compounds in Kansas, Missouri and Louisiana.

“Hopefully, with everyone’s efforts, she will be his last victim, and this monster will be put away for the rest of his life,” Williams said.

Lawrence County Sheriff Ryan Everett told The Post Sims has four wives living in different states and between 22 and 31 children, including La’Datra’s four kids: Elijah, 7, Elissa, 5, Elaina, 3, and Eli, 2.

Everett said Sims’ group certainly displayed “cult-like tendencies,” and noted the members conduct “strange rituals,” like “shaving their heads for new growth in the group” and “mud baths when there is any wrongdoing” amongst members.

Sims also declared himself the sole path to salvation, according to Williams.

“Problem is, it’s not even illegal to be in a cult, because that’s freedom of religion,” Everett said. “But the problem is a cult is always some kind of front for something else, like sex trafficking or narcotics.”

La’Datra died from blunt force trauma, said Williams.

Williams said he and La’Datra’s mother, Victoria, were in high school when she was born. But his fragile relationship with Victoria fizzled out, and he wound up raising La’Datra as a single dad.

Williams, an intel-gathering specialist during his stint with the armed forces, said his mother and younger sister watched La’Datra when he was deployed overseas in 2005 and again in 2006 as part of Operations Enduring Freedom and Iraqi Freedom.

While he was overseas, La’Datra’s mother died from childbirth complications.

Williams, who now works in private information security, said he’s learned Sims started grooming La’Datra soon after, when she was just a teen out of high school. A relative on her mother’s side — also a member of Sims’ mysterious group — introduced them, he said.

They began dating when she was 18 and he was 49, and Sims has children with two of La’Datra’s maternal aunts, he claimed. Williams said he never met Sims.

“I knew it was a long-term relationship, but knew nothing about him,” Williams said. “I assumed he was a kid, and they were doing dumb, stupid-ass kid sh-t and I’d eventually meet this little bastard. I had no inkling this was happening, because it was hidden from me.”

But La’Datra came to him in April and asked if she and the kids could live with him.

He was thrilled. “I knew she wanted more for her life,” he said. “I even convinced her into going back to school, to get her degree.

On May 19, La’Datra left to end the relationship in person, and Williams said he ended up asking cops for a welfare check late the next day, when calls to her phone went straight to voicemail.

“I knew something terrible happened,” he said.

An angry Sims called Williams demanding to know why he had sicced cops on him. Then told the dad what he had told the cops — that she left his home with another man.

“This is the first f–king time I’ve ever talked to this dude in my life, and I said, ‘Motherf–ker, you know why I sent them . . . Where’s my f–king daughter?'” Williams recounted.

Williams said Sims’ had one of his other wives drive La’Datra’s car from Mississippi to Missouri, where it was found during the search for her.

Sims remains in custody with no bond.

A GoFundMe campaign has been established to cover the costs of La’Datra’s Aug. 16 funeral, and has raised close to $5,000.