related to the mit scientist that had lived for numerous years here inside the u.s. investigators are looking into it. we are now told that they do not believe that s the case, but the investigation very much ongoing. so, again, a demand for a terror-related suspect who is in prison in texas. that is the demand that s being made at this hour, for her release. and the standoff continues. we are hearing from some law enforcement sources that there s concern that one shot had been fired, but that it may have been accidental, and that they are continuing to try to communicate with the hostage taker inside that synagogue. one other important note, how did this all come about? apparently when the gunman entered the synagogue and took the rabbi hostage in dallas, he had that rabbi call another rabbi here in new york to say,