(Sherwood, OR)  --  Sherwood Police have arrested a 19-year-old man for allegedly sexually abusing an 11-year-old child.  Police say Mann met the victim online.  Police were notified about the accusations last September.  Sherwood Police worked with Lake Oswego and Beaverton detectives to identify Mann as the suspect.  He was indicted by a grand jury and booked into the Washington County jail on charges of rape, sodomy, and sexual abuse.