3 day!have a great have a great >>> there is shock and grief this morning in san bernardino, california, after wednesday's deadly massacre the city east of los angeles is coping with the deadliest mass shooting in the united states since 2012.

>> rachael: what do we do?

and another 17 injured. police say the suspects targeted a holiday party at the inland regional center in san bernardino. >> hours after the rampage, a police chase and a shootout left officials say their motive could be a workplace dispute or terrorism. norah o'donnell is at the scene of the massacre in san bernardino and joins us once norah, good morning. >> they are not ruling out terrorism at this hour. we are learning more about the suspects, though. police say syed farook and his

>> the first reports of gunfire came in just after 11:00 a.m. after the first 911 call police were on the scene within four minutes. the police chief said the two assailants came prepared as if on a mission witit semi automomic rifles wearing masks andnd had prepared for a gun fight. the authorities placed all local lock-down. they reported a black suv fleeing the scene. around four hours after the initial shooting there was a police chase of the suspects

eugene, about this particular shooting and the way it was carried out and by who? >> it's an outlier as far as a woman involved. >> how unusual is having a woman? >> very unusual. only a small number of shooters have been women. >> are the women normally tied to the men associated with the attack? >> again, stereo types are easy to fall into. as ariminal justice tter, and this may be something beyond criminal justice but it's often