This summary provides an overview of the key details from the documents: The documents provide information about a mass shooting that occurred at a social services center in San Bernardino, California. Three attackers opened fire at a holiday party, killing 14 people and wounding 17 others. Later, police engaged in a shootout with two suspects who were killed. A third person was detained. The documents include maps showing the location of the shooting and details from police and FBI about the ongoing investigation into the motive, which is currently unknown.