of his television program. On 3 February 2008, the undercover video aired on Dutch television showing Van der Sloot purportedly smoking marijuana and admitting to being present during Holloway's death. The show was watched by 7 million viewers in the Netherlands and was the most viewed non-sports program in Dutch television history. Patrick van der Eem, working undercover for De Vries, had befriended Van der Sloot, who was unaware that he was being taped when he said that Holloway had suffered some kind of seizure while having sex on the beach. After failing to revive her, he said that he summoned a friend named Daury, who loaded her on a boat and dumped her body into the sea. The prosecutor in Aruba determined the video was admissible, but the evidence was deemed insufficient to warrant re-arrest. Although the taped confession appeared damning, Van der Sloot argued that he was lying to impress Van der Eem, who he believed was a drug dealer. Van der Eem said that ABC paid US$830,000 to secure the rights to broadcast the program in the United States. De Vries wrote the introduction to the June 2008 book (Overboard: how I got Joran van der Sloot to talk) in which Van der Eem recounts his experience with Van der Sloot with transcripts of the undercover video. On 22 September 2008, in New York, De Vries accepted an International Emmy Award in Current Affairs for his coverage while accompanied by Natalee's mother Beth Holloway. Joran van der Sloot sex trafficking In November 2008, De Vries aired undercover footage of Van der Sloot making preparations for the apparent sex trafficking of Thai women in Bangkok. De Vries claimed that Van der Sloot was making $13,000 for every woman sold into prostitution in the Netherlands. Van der Sloot used the alias of "Murphy Jenkins" to avoid Thai authorities. Peruvian Minister of Justice Aurelio Pastor said that Thailand is pursuing criminal charges against Van der Sloot. According to The National Enquirer, he is being investigated for his involvement in the disappearance of young women he may have recruited for a Thai sex slave gang while posing as a production consultant for a modeling agency that would send them to Europe. Death of Mariska Mast In August 2010, De Vries traveled to Subiaco, Western Australia in an attempt to interview dive instructor Daniel Ian Ross, who is being sought through Interpol