A choir perform in front of hundreds of people at the Guildhall in Derry, Northern Ireland, in the name of Lyra McKee, as friends of the murdered journalist are due to arrive in Londonderry today at the end of their three-day peace walk from Belfast. PRESS ASSOCIATION Photo. See PA story ULSTER Walk. Picture date: Monday May 27, 2019. Photo credit should read: Liam McBurney/PA Wire