On Sunday, some media reports said van der Sloot and van Cromvoirt were acquaintances. Joseph Tacopina, an attorney representing van der Sloot, who was arrested in Holloway's disappearance last year but released because of a lack of evidence, said those reports were wrong. His client, he said, knows nothing about van Cromvoirt.

"I am absolutely convinced he doesn't know him, doesn't hang out with, or socialize with him, did not know his name," Tacopina said. "This somehow brought Joran back into the picture. He knows nothing about him, has never spoken of him, and certainly did not discuss the case with him."

Connections to a Security Company

Van Cromvoirt worked for a private security company that patrols beaches outside Aruba's hotels. Holloway was last seen leaving an Aruba bar with van der Sloot and Surinamese brothers Deepak and Satish Kalpoe, who were held for 25 days before being released. Van der Sloot has said he left Holloway on a beach near her hotel after they had kissed.

Van Cromvoirt's family runs the security company, according to Tacopina. The company provides security for the Aruban government and private companies, including the Holiday Inn, where Holloway was staying, he said. The company installed the security camera and patrols the beach. Van Cromvoirt was part of the team that patrolled the Holiday Inn's beach in the early hours of the morning, according to Tacopina.

"This is a positive step as far as we are concerned in this investigation because we have always maintained [van der Sloot] is innocent of harming in any way, shape or form," Tacopina said.