Manhunt underway in Arizona for suspect who threatened to kill Trump as former president lands in border state  Fox NewsArizona man accused of threatening to kill Trump nabbed after manhunt during former president’s border visit  Fox NewsSouthern Arizona authorities search for man connected to threats to kill Trump  Arizona’s FamilyArizona man sought as investigative lead for threats to kill presidential candidate: Cochise Co. Sheriff  FOX 10 News PhoenixPolice search for Arizona man who threatened to kill Trump  BBC.com