Viana said his department is waiting for a court to rule on last minute appeals by McAfee's lawyers to prevent his deportation to Belize. In the meantime, he is staying at a government hostel.
In Belize, McAfee's neighbour on the palm-fringed island of Ambergris Caye, was discovered dead on November 11. The 52-year-old Florida expat, Gregory Faull, was found by his housekeeper with a 9-mm bullet in his head, lying in a pool of his own blood.
Authorities in Belize want to question McAfee, although he has not been charged.
McAfee had slipped across the border into Guatemala over the weekend with his 20-year-old girlfriend to request asylum, but the petition was turned down.
McAfee, 67, insists he had nothing to do with the killing.