whether or not when they will looking for anybody else. nicole, yannicoll nicolle, you and i have sadly done this before. so there are often reports when there a third or second shooter when there isn't. so that is the process that is occurring. so tonight soon to say with any sort of certainty that whoever may be responsible for this incident, that that person is in fact either no longer shooting, no longer with us or is in custody in some way. just too soon to say. kara swis to talk about the security that exists at most tech companies. which you describe the security at youtube headquarters where you were last week, you said that you needed to badge in. are there guards, where there