Will ISIS Claim responsibility for the San Bernadino massacre today?

With the San Bernardino standoff taking place apparently by armed thugs with body armor I would not be too shocked if this is an incident that ISIS will claim responsibility for.
[Update 1900 December 2] "An FBI spokesman said it was not clear whether the incident was terror related."
DEVELOPING: Police in San Bernardino, Calif., in pursuit Wednesday of a black SUV believed to be the getaway car for three gunmen who shot up an office holiday party, murdering 14 people, reportedly killed two suspects and were pursuing a third who may have been barricaded in a home after fleeing on foot.
The shootout occurred less than two miles from the social services center where the massacre occurred hours earlier, and police sources told Fox KTTV they believe the men in the SUV were the ones responsible for the earlier attack. It appeared to bring closer to a conclusion a manhunt that began after three heavily armed gunmen "on a mission" -- and garbed in body armor -- burst into a San Bernardino social services facility and murdered in cold blood at least 14 people attending an office holiday party.
The men, who witnesses said were wearing body armor and masks, entered the Inland Regional Center just after 11 a.m. with grim precision, according to San Bernardino Police Chief Jarrod Burguan. Once inside, they opened fire with rifles, shooting people in a conference room where a holiday party was taking place, authorities said. Hundreds of people were seen streaming out of the building moments later, some described by witnesses as holding their hands above their heads and even diving for cover behind cars in a parking lot.
"Up to three people entered the building and opened fire on people inside the building," Burguan said at a news conference some three hours after the first call went out. "The suspects have fled, potentially in a dark-colored SUV.
"They came prepared to do what they did as if on a mission," he added. The incident lasted less then five minutes, police said.
http://www.foxnews.com/us/2015/12/02/as-many-as-20-shot-police-in-standoff-in-san-bernardino-calif/