(Portland, OR)  --  Police say a Florida man is accused of flying to Portland to have sex with a 12-year-old girl he met on Instagram.  Authorities say 42-year-old Sergio Zambrano had sexually-explicit chats with the girl online before deciding to fly to Portland.  He was arrested Sunday at a Portland motel, and the 12-year-old was hospitalized with minor injuries.  Zambrano is facing multiple charges, including rape and sex abuse.