now to a radical islamist group that's banned in britain. phil black, talk to us about the new information you're learning regarding the suspect's background? >> christie and martin, good morning. what we understand is that the suspect was a quibted terrorist. someone who back in 2012 had been b convicted of terror offenses, planning, financing, supporting terrorism. someone who wanted to establish a terror training camp overseas who was released on license as they describe here. essentially a form of probation. he was still being tracked and monitored with an electronic tag, but that was not enough to stop him from carrying out that attack. through his actions, killing two people, hurting three others, he has created a lot of headlines, obviously, but there's a great deal of interest in the members of the public who acted very quickly and decisively to stop him seemingly without any great concern for their own safety.