He originally went to the airport but suddenly changed his mind about flying after seeing the police presence at the airport.
The 3 people arrested = cab drivers
From the JVDS translation thread:
His plan was to board a plane and so he went to Jorge Chavez airport but when he saw police he changed his mind and took a taxi to Ica. He paid 1500 soles and gave a gift of a Ferrari watch, a camera, cell phone, perfume/cologne, and clothing.
After that, Joran VDS left the hotel in Stephany's truck, but then left the vehicle parked in Surco, and hired a taxi to take him to Ica and another to Arica. According to his testimony, he told both taxi drivers he had been falsely accused of killing someone.
Also from CNN:
The court also accused
three men of failing to report the crime, the release said. Brothers John Williams Aparcana Pisconte and John Oswaldo Aparcana Pisconte, along with Carlos Alberto Uribe Petril, drove van der Sloot from Peru to Chile last week, police said.
http://www.cnn.com/2010/CRIME/06/11/...ase/index.html