First John Berman News Today : Breaking News, Live Updates & Top Stories | Vimarsana

We're told that he has been talking with investigators since his arrest yesterday. and we also know that that ar-15 he used to carry out this attack, it was purchased legally. he passed a background check despite the fact that he had been expelled from school at least a year ago, and we know that he used this, he carried multiple rounds of ammunition in this shooting that killed 17 people. but john, a lot of disturbing details unfolding here, mostly from his social media profile and the fact that we now know, our cnn team has talked to this youtube account holder who did, in fact, alert the fb...

A threatening comment to a video he had posted back in september and alerted the fbi who got back to him immediately. the commentator had the same name as the florida shooting suspect. the key to all of this is that this message on youtube, buzzfeed is reporting, from the person with the same name as the alleged shooter here, said he wanted to be a school shooter. cnn's jessica schneider joins me with the latest on that. this seems to be an extraordinary clue, jessica. >> reporter: it does, john. the fbi was alerted to this. this youtube user, our cnn team has just gotten in touch with. he tel...

Border security trust. what it does is it also, though, leaves in the diversity visa lottery program. that is a big one that the president wants to eliminate, and that would be the fourth plan, expected not to pass. we'll wait and see what happens in the senate, which of these plans gets that critical 60 and what the president and how the president reacts to it today. erica? >> suzanne, thank you. still to come, a community in morning. president trump as we mentioned will be addressing the nation shortly. first john berman speaks with a state representative who says hell is waiting for this ...

Gone to this person's house, knocked on the door and questioned him at a minimum, that provides some level of deterrence and the fbi would have been able to ascertain whether or not this was somebody that just said something in the heat of the moment or had really bad intentions planned. >> a knock and talk. we don't know if that happened with the shooter. we know it happened with the person who posted the video and alerted the fbi. we do not know if that happened with the shooter. tom very aney, had it happened,e fbi and law enforcement might have found out this is a kid that had been expelle...

John berman in parkland, florida. behind me they're setting up for a press conference. in a few minutes we will hear from the county sheriff, potentially also florida's governor rick scott and officials from the hospital to get an update on the investigation here, to get an update on the people who were wounded and still being treated at this high school behind me. 17 people were killed, more than a dozen were injured. we're continuing to learn more from the hospitals where the victims are being treated this morning. we want to get straight to cnn's dianne gallagher for the latest on that and ...