Another possible culprit is Kris Klemp, who, along with Sandy, has been reluctant to cooperate with any investigation regarding Lena's disappearance. Lena's sister Brandi Petersen has also testified against Kris for threatening to shoot her. If he was indeed involved in Gary's death, he might have had a strong reason to keep Lena quiet as well. There were also rumours that Lena's son may be Kris' but there's no evidence to back that up. Sandy is now remarried to a man named Joe Wink and continues to raise her grandson as her own.
Here's what Barry County Sheriff Mick Epperly has to say to The Monett Times: "We think [Sandy and Kris] are insurance for each other. All she has is Klemp. Sandy can't testify against Kris because we believe he killed Lena, who was a loose end. Kris can't testify against Sandy because he helped dispose of Gary McCullough's body."
Lena's sisters believe that Lena's body is on one of Sandy's former properties, but it has yet to be found.