Law enforcement are saying Syed Farook, 28, and his wife, Tashfeen Malik, 29, were the two shooters that killed 14 and injured 21 at the Inland Regional Center, and that they acted alone. They also had explosive devices, which along with their cadre of weapons and killer duds shows premeditation. Both were killed in the shootout with police. U.S.-born Farook had recently traveled to Saudi Arabia and returned with Malik, a Pakistani whom he met online. They have a 6-month-old. (Farook's brother is still being described as a person of interest.) Hard to know what to make of this. Doesn't quite sound like a terrorist cell, yet not a typical (for lack of a better word) revenge plot, either. Perhaps a long-simmering grudge that may or may not have had ideological influences. (Women have been known to help their disgruntled men when they believe they've been wronged.) The fact that Farook's brother-in-law already appeared at a press conference with the Council for American-Islamic Relations to condemn the violence could hint that he was an Islam nut, or it could just be a preemptive apology given the anti-Muslim climate in the weeks following the Paris ISIS massacre. Whatever the case, it's yet another incredibly dark day in America that will sadly be quickly forgotten.