. >> reporter: allison adonizio was a harvard-trained microbiologist he brought into the jungle.he famed entrepreneur was at it again with his latest startup venture, creating plant-based antibiotics. but she says the enterprise fell apart when her benefactor started to come unhinged. >> he became very paranoid, he was talking about taking over the country. i started to think, "this guy is a madman." >> reporter: mcafee says he was helping the locals, feeding poor families and providing many with jobs. >> i employed half of the town. i can show you a letter from the mayor, saying that mr. mcafee's done more for orange walk than any of our citizens have. >> reporter: but exactly what was he doing for those citizens? mcafee admits he brought in young women to be in his harem. then there was the gang of convicted criminals mcafee proudly says he hired as his armed bodyguards, his own private militia. >> everybody i hired was an ex-felon and had spent half of their life in prison. >> reporter: it sounds like that's a recipe for disaster. >> they never shot anybody. never even pointed