“I’m actually looking for an official answer from the authorities.”
Oh... how about this?
“Former head of the UK’s national counter terrorism office, Chris Philips, told BBC Radio 4: “This person was more organised, the suicide vest, the explosives - whether made or bought.”
The use of a suicide vest in Europe might be a turn for the worse. They might have been used before, but it seems most terrorist attacks there have been guns, vehicles and other types of explosives. It will be all too easy for someone wearing a suicide vest to mix with any large crowd leaving an event or in many other types of gatherings.