In September 1979, twelve-year-old Lesia Michell Jackson spent the day swimming near her home in Montgomery County, Texas. She was last seen walking alone through the Lake Wildwood subdivision toward her family's house.

She never made it home.

Six days later, an oilfield worker discovered Lesia's remains in woods along a pipeline roughly five miles away.

Her murder would remain unsolved for forty-three years.

Then investigators returned to evidence that had been preserved since 1979. Using modern DNA collection technology, they recovered a profile—and finally gave Montgomery County's oldest cold case a name.

In the premiere of Behind the Pine Curtain, we examine the disappearance and murder of Lesia Jackson, the investigation that refused to completely disappear, and the forensic breakthrough that fi ...