hop add low cement divider and started killing and injuring pedestrians. that s why this form of terrorism should worry all of us. the death toll stands at four tonight including a police officer, approximately 40 injured. it started on the westminster bridge, ended up in the courtyard of parliament when the attacker was shot and killed. have we confirmed single male attacker? looks like that s the case. as britain enters the day after this day of terror, there does not seem to be any credible sign of a claim of responsibility by isis, by al qaeda, that the acting deputy commissioner this was potentially a lone lunatic, a maniac.