GUATEMALA CITY, Guatemala – Software company founder John McAfee was hospitalized yesterday after being denied political asylum in Guatemala and his lawyers said they were making a last-ditch effort to keep him from being flown back to Belize for questioning about the killing of a fellow American expatriate.

McAfee told The Associated Press that he had suffered chest pains overnight but didn’t believe he had suffered a heart attack. A government doctor who examined him agreed, saying McAfee’s heart rhythm and blood pressure were normal, and he appeared to be suffering from high stress.

McAfee was moved from an immigration center to a police-run hospital yesterday afternoon after Guatemalan authorities said McAfee’s request for asylum had been denied. They did not explain why. Shortly after the decision was announced, McAfee issued a plea on his blog for the public to petition Guatemalan President Otto Perez Molina to let him stay.

“Please email the President of Guatemala and beg him to allow the court system to proceed, to determine my status in Guatemala, and please support the political asylum that I am asking for,” the post read.

McAfee’s legal team said they were preparing to appeal the denial of asylum to the country’s constitutional court, a process that could give McAfee perhaps another day or two in Guatemala. The court would have to issue a decision within 48 hours.

McAfee, the creator of the McAfee antivirus program, has led an eccentric life since he sold his stake in the anti-virus software company that is named after him in the early 1990s and moved to Belize about three years ago to lower his taxes.

He told The New York Times in 2009 that he had lost all but $4 million of his $100 million fortune in the U.S. financial crisis. However, a story on the Gizmodo website quoted him as calling that claim “not very accurate at all.” He has dabbled in yoga, ultra-light aircraft and producing herbal medications.