(Milwaukie, OR)  --  The Clackamas County Sheriff's Office says a man wanted for sexually assaulting a sleeping girl in Milwaukie has been arrested.  Authorities say Santiago Martinez-Flores was arrested in southern California.  Deputies say he broke into a home in the 10-thousand-400 block of Southeast Cook Court in late February and sexually assaulted a sleeping nine-year-old girl.  Authorities say Martinez-Flores has a criminal record dating back to 1994.