Natalee Holloway's Mom Is Still Seeking Justice 11 Years After Daughter's Disappearance in Aruba

"I have my answer as to what happened to Natalee," Beth Holloway said

Natalee Holloway‘s mother has not stopped seeking justice since her daughter vanished 11 years ago. And she says she knows who’s behind the teen’s disappearance.

During a Monday appearance on the Today show, Beth Holloway said she is sure Joran Van Der Sloot is behind the crime.

“I have my answer as to what happened to Natalee, and he’s sitting in prison in Peru,” Holloway said.

Natalee disappeared in May 2005 while on a trip to Aruba with friends following her high school graduation. She was last seen with Van Der Sloot outside a bar. The Dutch man was arrested multiple times but never charged in the 18-year-old’s disappearance.

Van Der Sloot is serving a 28-year sentence in a Peruvian jail for the 2010 murder of Stephany Flores Ramérez. But Holloway says he should be serving time in the U.S. for Natalee’s disappearance.

“Justice is being served for Stephany Flores, thank God,” she said on Today. “And he is in prison in Peru. But justice has not been served for Natalee.”

She added: “That would be justice to me, to see him serve prison time in the United States. That would be justice for Natalee.”

Holloway, who said she and her family have “done it all” to solve the case, has long suspected Van Der Sloot in her daughter’s disappearance, and even sneaked into a Peru prison to confront him in 2010.

VIDEO: Natalee Holloway’s Dad Recalls Tense Confrontation with the Father of Joran Van Der Sloot

When Van Der Sloot serves his full sentence, he will face extortion charges in the United States for allegedly taking $25,000 from Beth Holloway in exchange for information about Natalee’s remains that proved false.

Holloway said waiting for the man to face charges in America won’t be difficult.

“No, it’s not going to be hard,” she said. “I take great comfort, I left him in a prison in Peru, so I feel good about that.”