The man who is accused is Kenneth Jovan Washington who is already in custody after been found living with his mother in Fairfield on Jan 4.
Washington has been charged with forcible rape and three other sexual assault charges in addition with the Dec. 24 rape of a 19-year-old woman in Oakland.
The women who were sexually assaulted are still being interviewed by the Police.
Washington is also accused of evading a police officer in Alameda County on August 2006.
Police want to hear from other victims of Washington and are asking anyone with information to call homicide Sgts. Lou Cruz or Caesar Basa at 510-238-3821.