Make sure you read this if you have not seen it already...
http://www.nynewsday.com/news/nationworld/world/ny-woarub204312713jun20,0,2234101.story?coll=ny-worldnews-headlines
From the link
Ben Miller, a classmate of Holloway's, said he later saw her leave Carlos 'N Charlie's, where tourists dance on tables and gulp neon-colored cocktails, with Kalpoe, 21, and his brother Satish, 18.
But the brothers disagreed on details such as who had paid for their drinks, and who got separated from whom at Carlos 'N Charlie's before meeting back at the car. They differed on whether van der Sloot brushed Holloway off or danced with her. They said van der Sloot asked her where she was staying, though witnesses said the two had met at her hotel. Yet despite the inconsistencies, they remained free while police burst into the homes of two black security guards from the town of San Nicolas and arrested them.
"They decided to pick out some poor black guy, because father is a prominent man in society," said Mickey John, 30, who was roused from sleep, handcuffed and jailed eight days. "They just accused me, which was racial discrimination."