She had essentially made the statement in an online account that she didn’t think that a Muslim should have to participate in a non-Muslim holiday or event,” San Bernadino’s police chief, describing Farook’s wife and co-terrorist Tashfeen Malik, told ABCNews. “That really is one of the very, very few pieces of potential evidence that we have that we can truly point to and say, ‘That probably is a motive in this case.”
Farook reportedly went to the office in the early morning for the party before promptly leaving. He returned 20 minutes later in a rental car with his wife, several automatic rifles, and pipe bombs. As the attack on Farook’s coworkers began, Malik declared her allegiance on Facebook to Islamic State.
These two killers were busy making bombs and practicing their shootings weeks before the actual killing, so I have my doubts that it was Santa Claus that set them off (by the way, why isn't the wife in jail?), but I find this headline, picked up by national and local media alike, a bit of a whitewash: "A year after attack in San Bernardino, faithful seek unity". A whitewash because, whether Farook was needled by that office Christmas tree or not, his attack was clearly based on religious hatred. It's nice that his co-religionists apparently disapprove of his actions, but the article cited is focused on efforts to help non-Muslims "understand" Islam; I'd prefer to see that energy spent on controlling the people actually doing the killing.