A man and woman armed with assault-style rifles opened fire on the holiday party of his co-workers in Southern California, killing 14 people and wounding 17 others, and then were slain hours later in a shootout with police, authorities said.
The two suspects were identified as Syed Rizwan Farook, 28, and Tashfeen Malik, 27, who San Bernardino Police Chief Jarrod Burguan said were in a relationship, possibly married or engaged. He said they were believed to be the only shooters involved in an attack that required some degree of planning.
While the motive remained unclear, Burguan said, "We have not ruled out terrorism." Farook was U.S.-born, while Malik's nationality was still undetermined.