down this street for several hours after the attack occurred. so if you can imagine, this was a 21,000 seat arena. we haven't been told exactly how many people were here. but there were obviously tens of thousands of fans. so it took quite a while to clear all of them out. there's going to be a lot of questions about whether or not this was managed properly. not just the investigation following the attack, but whether the minutes after the attack occurred whether this was managed. there was this initial bomb blast that likely killed quite a few people, but there will be questi questions as to whether a lot of them were also killed in the stampede that followed. >> certainly a developing story as we hear more and more exactly about what happened. matt, we'll talk to you later in the show. thanks for joining us. >> the manchester's attack is the uk's deadliest in decades.