Altogether , eight witnesses delivered their testimonies on February 5 , 2013 . Among them were friends of Daniel Nosek . Nosek and three friends had come to attend the concert from Vrchlabí , a town in mountains some 130 kilometres ( 81 mi ) northwest of Prague . They described Nosek as a huge fan of Lamb of God who had been able to secure an autograph from a guitar player before the concert had started .