Software company founder John McAfee is in hiding in Belize as police urge him to come in for questioning to help solve the killing of his neighbour.
McAfee, 67, reportedly told Wired magazine that he had nothing to do with the death, but feared police in the Central American country would kill him if they found him.
He said he hid in the sand when he saw police coming to his house on Sunday and put a cardboard box over his head to breathe.
Belize police said they believed McAfee was still in Belize, but would contact authorities in the United States, Mexico and Guatemala if there were signs he had left the country.
McAfee told the Associated Press in an email that he was not planning to turn himself in. "Suspect or no, I believe the government wants me out of the way. Too many people have died in custody in this country so I intend to do nothing that puts me in their custody." He gave no indication of his whereabouts.
A spokesman for Belize's ministry of national security said: "We want to encourage him to come in." Raphael Martinez added: "If he feels threatened, we need to tell him, 'Get someone to go along with you, but come in. Let's solve this crime and you can free yourself'."
Mr Martinez said two people had been detained in the investigation for questioning, but police had yet to establish a motive for the crime and no charges had been filed.
Mr Faull was found with a gunshot wound to his head inside his two-storey home north of San Pedro, a town on the island of Ambergris Caye, Mr Martinez said. The housekeeper discovered the body on Sunday morning and called police. McAfee told Wired that whoever shot Mr Faull may have been gunning for him instead and mistakenly killed his neighbour.
San Pedro mayor Daniel Guerrero said Mr Faull had given the town council a letter complaining that McAfee's dogs were running loose, chasing cyclists and attacking people and that McAfee's security guards were trespassing on other homeowners' property. But Mr Guerrero said there was not enough evidence for him to say McAfee is a suspect.