LAYTON – A Farmington man who police say huffed a can of air duster before trying to hijack a UTA bus and attempting to burn an officer, is now facing formal charges. Keith Sterling Frandsen, 36, was charged Monday in 2nd District Court with bus hijacking, a first-degree felony; assault on a police officer, a class A misdemeanor; and interfering with a police officer, a class B misdemeanor.