There was heightened security put in place for this event as the Orlando nightclub shooting had occurred earlier in the month . Following the attack , Pride in London reported a surge in support and said “ it will be a celebration and commemoration . So many people have got in touch to say that they want to show their support after Orlando . ” A minute 's silence was observed in remembrance . In 2015 the celebrations ran from 21-28 June , with the parade on the 27th ; the day after same sex marriage became legalised nationwide in the United States . The theme " Pride Heroes " was used to celebrate LGBT figures of the day and throughout history including computer scientist Alan Turing and a gay sports club The King 's Cross Steelers
Orlando nightclub shooting
Orlando nightclub shooting
Pride in London