Tragedy In Mexico: The Latest
b"Mexican authorities investigating the massacre of nine American women and children believe the shooting may have been the result of mistaken identity. Family members tell CBS News they believe the group was intentionally targeted by a drug cartel. Five of the eight children who survived the ambush in Northern Mexico are being treated in a Tuscon, Arizona hospital. A heavily armed man who was arrested Tuesday night is no longer considered a suspect in Monday's massacre. The funerals are expected to begin as early as today. CBS News' Adrienne Bard joins Tony from Mexico City with the latest."