The chief suspect in the unsolved 2005 Aruba disappearance of Alabama teen Natalee Holloway appears to have made a shocking confession to an undercover reporter about having murdered her.

Dutch convicted killer Joran van der Sloot, who is in a Peru jail for the 2010 murder of a 22-year-old woman there, was captured on an undercover video admitting that he lied to the police about Holloway’s death, Radar­Online.com reported Wednesday.

“I always lied to the police. I never told the truth,” said a grinning van der Sloot in the video. He was speaking in Dutch about the Holloway case to his wife and an undercover reporter working for Radar­Online and the National Enquirer.

“Also, when I was young­er, I never told everything. The police just never knew what they had to ask me,” van der Sloot said.

When asked if he’s talking about the Holloway case, van der Sloot replied, “Yes, this is also where I am guilty and I accept everything that I have done.”

He added, “I think that was one of the worst police investigations that ever took place.”

Van der Sloot was the last person to be seen with 18-year-old Holloway, who vanished on a high school trip to the Caribbean island.

Here is the hotel surveillance footage that provided the damning evidence to convict Van der Sloot in the Stephany Flores case: