The Ripken family has not commented on the investigation, except to say that it had been a "trying time" for the family and that they were relieved their mother was home safely.
Law said Vi Ripken is loved in the small town of about 15,000 where she has remained despite her son's fame.
"She's just Vi and she wants to be treated that way," Law said.
Associated Press writers Eric Tucker and Jessica Gresko contributed to this story from Washington.
Copyright 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.