Fellow passengers said the software tycoon looked depressed and dishevelled as he entered the US on a flight to Miami after weeks on the runJohn McAfee, the fugitive software tycoon wanted for questioning in Belize over the murder of his American neighbour, arrived in Miami on Wednesday night.Fellow passengers aboard his flight from Guatemala City, where the eccentric 67-year-old was released this morning after a week of detainment, said they were prevented from disembarking while he was taken away.Airport spokesman Greg Chin said that federal agents greeted McAfee at the door of the plane and helped him through immigration and customs formalities.A short time later, a posting on McAfee's website announced that he was at a hotel in Miami's upscale South Beach neighborhood.