Developing:

Mother of Navy Yard Shooter 'So, So Very Sorry'

Associated Press Videos 0:34 mins

The mother of the man who killed 12 people at the Washington Navy Yard says she is "so, so very sorry that this has happened." Cathleen Alexis said Wednesday in New York City that she does not know why her son, Aaron, did what he did. (Sept. 18)

View Comments (1)