Cathleen Alexis: Mother of Gunman 'So, So Very Sorry' for Son's Rampage at Navy Yard; Details Emerge of Gun Battles with DC Officers (Video)
Cathleen Alexis, the mother of Aaron Alexis who killed 12 people in a rampage at the Washington Navy Yard, apologized publicly on Wednesday, expressing that her "heart is broken," and could not explain her son's deadly actions