Narwal tusk successfully used on London Bridge

[Pete Grey]

The bastard was wearing a suicide vest, fake, but if it was real he could have detonated it, even if he was being restrained.

Shooting to kill is the only way to stop it, wounding would not work.

Two shots to the head is the best way to ensure he could not. I believe that is what the police are TRAINED to do.

Remember Jean Charles de Menezes, in 2005 two weeks after the London bombings, he was shot several times in the head, as police believed he was carrying a bomb.