of terror connections. we're hearing there is no direct tie to a terrorist group. the question will be were they influenc influenced, inspired by a group like isis? they are looking at whether this was a couple self-radicalized. >> gary tuchman talking to the chief of police that says they have interviewed all the people that they have had access to, none of them exempt for one said there was a dispute or knew anything about a dispute. one person said there had been a dispute and the two people i talked to were there an hour ahead said they had not heard anything about a dispute or seen a dispute in the hour they were there prior to the attack. that's initially what led to kind of workplace angle but it still leaves the possibility i there was a longer term grudge which is why he may have targeted this place everyone though it's an act of terror. >> that's a theory among officials, there was something more deeply seeded, something more long term perhaps religious issues with someone else there. that's what they are focussing on now more than something that