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The victims testified at trial that Turpin picked the group up June 1, 2017, under the pretense that they would be attending his son's birthday party at his home, Montgomery said in a news release.
When they got there, the boy was not home and there was no party.
Instead, Turpin began drinking and smoking meth, and he coerced the children to do the same.
"Turpin then brought two of the juveniles upstairs, where he coerced them to smoke methamphetamine and attempted to get them to perform sexual acts on each other," Montgomery said. "Later, Turpin also groped and touched one of the girls while making sexual comments about her body."
The children were eventually picked up by the grandmother of one of the kids. They told their parents what happened, and the parents notified police.
The next day, St. Tammany Parish sheriff’s deputies conducted a search of Turpin’s home, where they found meth in his nightstand. He was arrested.
It took the jury just over four hours to return guilty verdicts against Turpin, Montgomery said.