South Dakota's most famous cold case is closed after authorities confirm a submerged Studebaker in Union County contained the remains of Sherri Miller and Pam Jackson.
Investigators have spent decades trying to figure out what happened to the girls. The teens disappeared on their way to a party in Union County in May of 1971.
Tuesday, authorities said it appears the cause was a car crash and no foul play was involved but there is an inmate serving time connected to the cold case.
In 2007, South Dakota authorities charged David Lykken with murder for the disappearance of Sherri Miller and Pam Jackson. Much of the case was based on an informant named Aloysius Black Crow who said Lykken confessed to him in prison.
At the time, Black Crow was actually a Montana prisoner who was moved to South Dakota for his own safety because he had testified against other inmates in Montana.
Black Crow did get a confession but it wasn't from Lykken. It was later discovered Black Crow staged the confession with another South Dakota inmate and the voice on the recording really wasn't David Lykken.
The hoax was discovered just two months before Lykken was supposed to stand trial for the murder of both girls.
"If I could be so bold to write your headline for you, I'd call it 'framed,'" Lykken’s attorney Mike Butler said in a February 22, 2008, interview.
Black Crow was charged with perjury and sentenced to ten years in prison. He now sits in a Montana prison again, serving that sentence at the same time as other charges he was convicted of in that state.
Black Crow also snitched on another inmate - James Strahl - who was convicted of a Union County murder in 2007. After Black Crow lied in the Lykken case, Strahl got a new trial but later pleaded guilty to the crime before his second trial could begin.
So, while South Dakota investigators say no foul play was involved in the 1971 disappearance of the two teens, at least one man is serving hard time because of the cold case.
Black Crow is eligible for parole in four years.