McAfee fights return to Belize to face questioning Guatemalan officials say they've rejected John McAfee's request for asylum The 67-year-old software company founder is back in immigration detention McAfee's attorneys request an injunction, saying "due process has been violated" They're requesting an injunction from Guatemala's Supreme Court Guatemala City (CNN) -- The next stop for software pioneer John McAfee could be Belize after Guatemalan authorities rejected his bid for asylum. Authorities there want to talk to him about the November 11 shooting of his neighbor, American businessman Gregory Faull. Under Belize law, McAfee can be held for 48 hours without charges, police spokesman Raphael Martinez said. But McAfee's fight to stay in Guatemala is not over. His attorneys said they filed a request for an injunction with Guatemala's Supreme Court to prevent his extradition. Standing outside the police hospital as ambulance lights flashed nearby, attorney Karla Paz said officials had unjustly rejected McAfee's petition without weighing the evidence. Due process has been violated. The right to defense has not been respected," she said. Read more: McAfee's exit from Belize ends in detention McAfee is being held in a Guatemalan immigration detention center while developments swirl. On Thursday, a neon green ambulance whisked the 67-year-old to a police hospital just hours after his bid for asylum was rejected. McAfee's legal team said doctors were treating him for cardiovascular problems. Later, attorney Telesforo Guerra offered a different diagnosis: McAfee had suffered a nervous breakdown, but tests showed he did not have heart problems. The series of events were the latest dramatic twists in a saga that reads like a best-selling mystery, with poisoned dogs, a dead neighbor and international intrigue fueled by weeks on the run. After weeks in hiding, the anti-virus software company founder emerged publicly Tuesday in Guatemala's capital, hundreds of miles from the Caribbean island in Belize where his next-door neighbor was found dead. McAfee requested asylum in Guatemala, arguing that he left Belize to escape police persecution. But Guatemalan authorities found there was no basis for his asylum request, presidential spokesman Francisco Cuevas said Thursday. On November 9, he told police someone poisoned his four dogs there. McAfee has said he had nothing to do with Faull's death, and Belize authorities are out to get him because he refused to pay a bribe to a politician months earlier. Belize police say they only want to talk with McAfee. "He's really gone out of his way to make the country look bad," Martinez, the police spokesman, said earlier this week. We just believe he should, if he's innocent as he's saying he is, he should bring in his lawyer, and let's get to the bottom of this and say what he needs to say and let's move on. Read more: A bizarre visit to John McAfee's pleasure palace in Belize CNN's Martin Savidge and Michael Martinez contributed to this report.