two years ago when three attackers wearing fake suicide vests did a knife attack on that bridge and the surrounding area. there was also an attack in january 2016 in paris on a police station with a fake suicide vest and more recently in catalonia in august of to 17 the perpetrators have fake suicide vests and they were wearing them because they wanted to be killed by police because they wanted to become martyrs in their warped view they wanted to go to paradise for doing that. was that the case with in -- with this attacker in london today. we don't know yet. because the police are not telling us what they think the motivation was or not specifying this was a jihadi attack. >> and what is interesting is the location. with all of you frankly we have talked far too many times about these type of areas. well-known around the world. it is iconic and tourists are here and this area, london