At one point, van der Sloot said he welcomed an opportunity to talk to Beth, but that hasn't happened. "I think the only way that could be productive is if he were hooked to a polygraph machine," Beth says. "Because we really want to get the truth."
When van der Sloot and his parents were interviewed on a Dutch talk show in January 2008, crime reporter Peter R. DeVries challenged them with some tough and heated questions about the Holloway case. After the show, van der Sloot was caught on tape throwing a glass of wine across a table into Peter's face.