How should we react to personal terror attacks - a message of 'One Love', or is it ok to get angry?

Last night a vigil was held near London Bridge to remember the victims of Saturday's terror attack. Seven people were killed 48 injured with 18 people are still said to be in critical condition. Mayor of London Sadiq Khan led the short ceremony. Addressing the attackers, he said: "We will defeat you. You will not win." The vigil came a day after Manchester held a One Love concert in response to the suicide bomb attack that killed 22 innocents. What do you think our personal response should be to such attacks - vigils and the love and peace message, or is it ok to be angry? Stephen got the views of Bishop Stephen Lowe and News Letter's Deputy Editor Ben Lowry.