Three people in Kentucky face human trafficking charges after a mom allegedly traded her newborn for a pickup truck, then sold the truck for methamphetamine.

Husband and wife Jeremy and Jamiee Brown pleaded not guilty this morning in Laurel County. They're accused of swapping their 1999 Dodge Dakota for the baby boy in January, just after his mom Heather Kaminskey, 30, gave birth, MSNBC reported.

Investigators say that Kaminskey, of Corbin, is still on the run and is wanted for drug charges. She was living in Florida before her son was born, but deputies told the Associated Press that child welfare agencies had already taken away two of her other children.

"She fled to Kentucky to have the child and avoid that child being taken by social services," County Lt. Rodney Van Zant told the station.

Friends and even some authorities believe the Browns wanted the baby to care for it.

"I honestly believe they had the best intentions," Van Zant said. "But the way they went about it was the wrong way."

Kaminsky allegedly sold the truck for $800 and some meth shortly after the trade, WKRC reported.

The Browns could see 20 years in jail if convicted. The baby boy -- now six months old and showing no signs of abuse -- is in protective custody.