Details Emerge and Speculations Arise About Motives of San Bernardino Shooters

Tashfeen Malik, the female suspect in the San Bernardino shooting spree, had expressed support for the Islamic State terrorist group and its leader, Abu Bakr al-Baghdadi, in a social media post, according to two U.S. officials.

While there was no indication yet that the extremist group, also known as ISIL or ISIS, directed the massacre in California that left 14 people dead, the posting represents the strongest link yet that the killings may have been rooted, at least partially, in terrorism.