Nowhere on that website did it say they were
From the website...
What we haven't heard is that Lorenzo Van Rijn and Jaime Carrasquilla are more than likely one and the same person. If you study the comparison photos at the top you'll see the likeness. Granted his hair is bleached blonde and his eyebrows are grown out, he appears to be wearing aplenty of sunscreen to keep his naturally dark complexion from getting more sun than necessary and the oils show in his skin. He may even be donning colored contacts in one photo.
Or he he really blonde and dyes his hair dark and sports a tan to look Columbian, even adopting a Columbian name?
http://arubansecrets.blogspot.com/2005/07/lorenzo-van-rijn.html