RACINE, Wis. (AP) – A Racine woman is accused of keeping her adult autistic son locked in the basement for more than two years, allowing him into the house only to brush his teeth or wash his face.  She and her boyfriend were charged Wednesday with being parties to the crime of abusing an at-risk person.  Prosecutors say 51-year-old Teri Allen acknowledged keeping her son locked up. She told investigators he relieves himself in a bucket.   Allen’s boyfriend, 43-year-old Sarkis Asdigian, told police the man initially stayed in an upstairs bedroom, where he would be locked in for up to a week.  A message left with Allen was not immediately returned. No working number for Asdigian could immediately be found.  The man has been placed into his grandmother’s custody.