(Portland, OR)  --  Police are searching for a man accused of breaking into a home and sexually assaulting a woman while she slept.  The victim says she was sleeping in bed with her fiance last Tuesday at their home in Cornelius when she awoke to find a man touching her.  The woman says she woke her fiance, who chased after the suspect for several blocks until he got away.  Police have identified the suspect as 29-year-old Edgar Agustin Perez.